diff --git a/docs/logos/logo-square.pdf b/docs/logos/logo-square.pdf
new file mode 100644
index 0000000..f6cfdbf
Binary files /dev/null and b/docs/logos/logo-square.pdf differ
diff --git a/docs/logos/logo-square.svg b/docs/logos/logo-square.svg
new file mode 100644
index 0000000..a5a422e
--- /dev/null
+++ b/docs/logos/logo-square.svg
@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="250mm"
+   height="250mm"
+   viewBox="0 0 250 250"
+   version="1.1"
+   id="svg245"
+   inkscape:export-filename="/home/adulau/git/cef-d4/document/logos/small.png"
+   inkscape:export-xdpi="90"
+   inkscape:export-ydpi="90"
+   inkscape:version="0.92.1 r15371"
+   sodipodi:docname="logo-square.svg">
+  <defs
+     id="defs239" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.35"
+     inkscape:cx="-81.428571"
+     inkscape:cy="560"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:window-width="1920"
+     inkscape:window-height="1056"
+     inkscape:window-x="0"
+     inkscape:window-y="24"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata242">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-47)">
+    <path
+       style="opacity:1;fill:#555753;stroke-width:1.03553081"
+       d="M 41.896165,65.828394 11.955713,246.27885 83.471365,257.36161 c -1.04324,-14.30188 2.5237,-29.87847 10.93562,-46.24269 22.970975,-44.68685 62.384205,-57.98187 107.071095,-35.01086 8.44097,4.339 15.74521,9.22553 21.89146,14.59492 L 239.02047,96.374144 Z M 164.42136,172.75416 c -14.74155,0.15985 -29.12275,4.73002 -41.27713,13.15254 0.48017,4.43908 1.25696,8.83206 2.34755,13.14518 9.77169,-6.5749 20.49836,-11.54057 31.73792,-14.75317 3.10978,-4.1397 6.51541,-7.96981 10.14451,-11.51696 -0.98542,-0.0285 -1.97006,-0.0384 -2.95285,-0.0285 z m 11.36245,0.77085 c -2.98353,2.59904 -5.8232,5.39673 -8.49241,8.39305 10.11397,-1.90541 20.52311,-2.41334 30.92474,-1.44789 -7.05952,-3.49627 -14.63223,-5.84086 -22.43233,-6.94516 z m 13.44505,12.74964 c -9.55733,-0.12781 -19.04225,1.05207 -28.19084,3.4643 -2.71246,3.7828 -5.18316,7.80925 -7.37566,12.07441 -0.2809,0.54656 -0.55286,1.09544 -0.82236,1.64477 2.96061,2.689 3.75032,7.02861 1.92623,10.5879 -1.52009,2.95637 -4.56835,4.81076 -7.89263,4.80364 -1.59485,5.4826 -2.67697,11.03367 -3.25824,16.58922 1.9455,2.41843 4.01759,4.75034 6.21294,6.98564 4.81475,-5.78835 10.1113,-11.14044 15.81837,-16.00973 -0.60893,-2.15231 -0.38162,-4.45585 0.63837,-6.44656 2.23491,-4.34779 7.57229,-6.0601 11.91991,-3.82488 0.21646,0.11357 0.42857,0.23676 0.63471,0.36795 9.88771,-6.49754 20.68474,-11.69561 32.14819,-15.37498 3.36162,-1.07902 6.75437,-2.00859 10.16658,-2.80934 -2.91546,-3.39937 -6.13287,-6.52588 -9.61465,-9.34237 l -0.002,-0.002 c -7.39891,-1.71917 -14.8756,-2.60868 -22.30911,-2.70812 z m -71.82474,4.04197 c -7.36248,6.25136 -13.42824,13.88577 -17.853145,22.47099 -3.10586,6.05537 -5.35978,12.51086 -6.69862,19.18331 0.10539,0.2161 0.19546,0.43957 0.30155,0.65496 7.270915,-11.72476 16.443385,-21.68308 26.906685,-29.67739 -1.15489,-4.14394 -2.03215,-8.36521 -2.65664,-12.63187 z m 34.13332,2.41377 c -8.54468,3.13915 -16.69104,7.38698 -24.20775,12.66501 2.62207,8.00026 6.30094,15.65346 10.96321,22.73775 0.66529,-3.87148 1.56437,-7.72854 2.69712,-11.55377 -2.99233,-2.68405 -3.79982,-7.04723 -1.96672,-10.62467 1.52874,-2.97247 4.60171,-4.83213 7.94415,-4.80368 0.35822,-0.74009 0.72222,-1.47797 1.10016,-2.21322 1.0922,-2.12472 2.25167,-4.19364 3.46983,-6.20742 z m 69.4827,12.13148 c -2.7199,0.6623 -5.42653,1.40353 -8.10973,2.26474 -10.78021,3.46014 -20.94331,8.32676 -30.2624,14.40544 0.63767,2.17545 0.41647,4.51228 -0.61819,6.52937 -2.23465,4.34736 -7.57057,6.05935 -11.91805,3.82487 -0.24209,-0.12567 -0.47902,-0.26096 -0.70829,-0.40842 -5.41924,4.65575 -10.44542,9.76874 -15.01256,15.29769 5.89348,5.24938 12.54158,9.84991 19.88979,13.62722 11.25635,5.78625 23.11844,9.08907 34.98145,10.139 0.0908,-0.22287 0.19118,-0.44214 0.29977,-0.65682 0.25953,-0.50508 0.5645,-0.97 0.90147,-1.40193 z m -98.95403,4.47618 c -10.02458,8.02418 -18.7197,18.01065 -25.451425,29.76017 3.13459,5.43254 6.730545,10.62399 10.762695,15.51294 2.33484,-0.87905 4.93245,-0.73233 7.15304,0.40475 3.04431,1.56509 4.80866,4.66957 4.79994,7.90182 l 15.2278,2.35858 c 1.0483,-1.98782 2.13397,-3.95144 3.27665,-5.87436 -1.02455,-7.26177 -1.26871,-14.65836 -0.68993,-22.06075 -6.50003,-8.52933 -11.56937,-17.99706 -15.07877,-28.00315 z m 21.0415,35.12493 c -0.0178,2.18153 0.037,4.35872 0.16733,6.52751 0.85658,-1.22011 1.73341,-2.42338 2.62905,-3.61148 -0.95235,-0.95605 -1.88704,-1.92659 -2.79645,-2.91603 z m -49.911195,1.10572 c -0.59124,1.21768 -1.13944,2.44491 -1.67973,3.67399 0.1182,3.21047 0.45012,6.38703 0.9751,9.51533 l 9.555765,1.481 c 0.14917,-0.47276 0.33038,-0.9406 0.56482,-1.39638 0.0178,-0.032 0.0356,-0.0598 0.0534,-0.0919 -3.465155,-4.19343 -6.626735,-8.59918 -9.469285,-13.18195 z m 57.310745,6.15587 c -2.17015,2.91251 -4.21899,5.92516 -6.13932,9.03327 0.34498,2.09289 0.77199,4.171 1.25472,6.23316 l 49.64995,7.69394 c -8.11304,-1.83916 -16.12728,-4.71051 -23.86736,-8.68926 -7.70707,-3.96177 -14.69082,-8.77805 -20.89799,-14.27111 z"
+       id="rect14"
+       inkscape:connector-curvature="0"
+       inkscape:export-xdpi="90"
+       inkscape:export-ydpi="90" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:37.67854691px;line-height:1.25;font-family:NanumSquare;-inkscape-font-specification:'NanumSquare, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:0.94196367"
+       x="45.466839"
+       y="125.80425"
+       id="text12"
+       inkscape:export-xdpi="90"
+       inkscape:export-ydpi="90"><tspan
+         sodipodi:role="line"
+         id="tspan10"
+         x="45.466839"
+         y="125.80425"
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:37.67854691px;font-family:NanumSquare;-inkscape-font-specification:'NanumSquare, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;stroke-width:0.94196367">D4 project</tspan></text>
+  </g>
+</svg>
diff --git a/docs/logos/logo.svg b/docs/logos/logo.svg
new file mode 100644
index 0000000..3a7370d
--- /dev/null
+++ b/docs/logos/logo.svg
@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="210mm"
+   height="297mm"
+   viewBox="0 0 210 297"
+   version="1.1"
+   id="svg8"
+   sodipodi:docname="logo.svg"
+   inkscape:version="0.92.1 r15371">
+  <defs
+     id="defs2" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="1.5306292"
+     inkscape:cx="512.35498"
+     inkscape:cy="621.13035"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:window-width="1920"
+     inkscape:window-height="1056"
+     inkscape:window-x="0"
+     inkscape:window-y="24"
+     inkscape:window-maximized="1"
+     inkscape:showpageshadow="false"
+     inkscape:pagecheckerboard="false" />
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1">
+    <path
+       style="opacity:1;fill:#555753;stroke-width:0.29086491"
+       d="m 103.60634,113.06829 -8.409822,50.6858 20.087662,3.11298 c -0.29303,-4.01718 0.70887,-8.39241 3.07165,-12.98887 6.4522,-12.55186 17.52278,-16.28623 30.07465,-9.83402 2.37094,1.21876 4.42259,2.59131 6.14898,4.09949 l 4.39611,-26.49554 z m 34.41547,30.03383 c -4.14068,0.0449 -8.18014,1.32859 -11.59412,3.69435 0.13487,1.24687 0.35306,2.48079 0.65939,3.69228 2.74472,-1.84679 5.75768,-3.24157 8.9147,-4.14394 0.87349,-1.16278 1.83008,-2.2386 2.84944,-3.23494 -0.27679,-0.008 -0.55336,-0.0108 -0.82941,-0.008 z m 3.19154,0.21652 c -0.83803,0.73003 -1.63565,1.51586 -2.38539,2.35748 2.84086,-0.5352 5.76463,-0.67787 8.68629,-0.40669 -1.98291,-0.98205 -4.10997,-1.64061 -6.3009,-1.95079 z m 3.77651,3.58118 c -2.68451,-0.0359 -5.34868,0.29551 -7.91838,0.97307 -0.76189,1.06253 -1.45587,2.1935 -2.07171,3.39152 -0.0789,0.15352 -0.15529,0.30769 -0.23099,0.46199 0.83159,0.7553 1.05341,1.97423 0.54105,2.97398 -0.42697,0.8304 -1.28318,1.35127 -2.21692,1.34927 -0.44797,1.53998 -0.75192,3.09919 -0.91519,4.65966 0.54646,0.6793 1.12848,1.3343 1.74512,1.96216 1.35239,-1.62586 2.84011,-3.12918 4.44314,-4.49689 -0.17104,-0.60455 -0.10719,-1.25158 0.17931,-1.81074 0.62775,-1.22123 2.12694,-1.70219 3.34812,-1.07435 0.0608,0.0319 0.12038,0.0665 0.17828,0.10335 2.77731,-1.82506 5.81003,-3.28512 9.02994,-4.3186 0.94423,-0.30308 1.8972,-0.56418 2.85564,-0.7891 -0.81891,-0.95483 -1.72263,-1.83302 -2.70061,-2.62413 l -5.1e-4,-5.2e-4 c -2.07824,-0.48289 -4.17833,-0.73274 -6.26629,-0.76067 z m -20.17448,1.13533 c -2.06801,1.75591 -3.77179,3.9003 -5.01468,6.31176 -0.87239,1.70086 -1.50548,3.51411 -1.88154,5.3883 0.0296,0.0607 0.0549,0.12347 0.0847,0.18397 2.04229,-3.29331 4.6187,-6.09045 7.55768,-8.33593 -0.32439,-1.16397 -0.5708,-2.34966 -0.74621,-3.5481 z m 9.58753,0.67799 c -2.40007,0.88174 -4.68826,2.07489 -6.79959,3.55741 0.7365,2.24715 1.76984,4.39682 3.0794,6.38669 0.18687,-1.08744 0.43941,-2.17083 0.75758,-3.24528 -0.8405,-0.75391 -1.06731,-1.97946 -0.55242,-2.98431 0.4294,-0.83492 1.29255,-1.35727 2.23139,-1.34928 0.10062,-0.20788 0.20286,-0.41514 0.30902,-0.62166 0.30678,-0.5968 0.63246,-1.17793 0.97462,-1.74357 z m 19.51664,3.40755 c -0.76398,0.18603 -1.52423,0.39423 -2.2779,0.63613 -3.028,0.9719 -5.88266,2.33886 -8.50025,4.04627 0.17911,0.61105 0.11698,1.26743 -0.17364,1.834 -0.62768,1.22111 -2.12646,1.70198 -3.3476,1.07435 -0.068,-0.0353 -0.13455,-0.0733 -0.19895,-0.11472 -1.52218,1.30773 -2.93396,2.74389 -4.2168,4.29689 1.65539,1.47447 3.52274,2.76669 5.58674,3.82768 3.16174,1.62527 6.49362,2.55298 9.82576,2.84789 0.0255,-0.0626 0.0537,-0.12419 0.0842,-0.18449 0.0729,-0.14187 0.15856,-0.27246 0.25321,-0.39378 z m -27.79469,1.25729 c -2.81575,2.25387 -5.25808,5.05892 -7.14892,8.35918 0.88046,1.52592 1.89051,2.98412 3.02308,4.35735 0.65582,-0.24691 1.38545,-0.2057 2.00918,0.11369 0.8551,0.43961 1.35068,1.31161 1.34823,2.2195 l 4.27726,0.66249 c 0.29445,-0.55835 0.5994,-1.1099 0.92036,-1.65002 -0.28778,-2.03972 -0.35636,-4.11731 -0.19379,-6.19653 -1.82576,-2.39576 -3.24966,-5.0551 -4.2354,-7.86566 z m 5.91024,9.86606 c -0.005,0.61276 0.0104,1.2243 0.047,1.83348 0.2406,-0.34271 0.48689,-0.68069 0.73846,-1.01441 -0.2675,-0.26854 -0.53004,-0.54115 -0.78548,-0.81907 z m -14.0193,0.31058 c -0.16607,0.34203 -0.32005,0.68674 -0.47181,1.03197 0.0332,0.90177 0.12643,1.79402 0.27389,2.67271 l 2.68407,0.41599 c 0.0419,-0.13279 0.0928,-0.2642 0.15865,-0.39222 0.005,-0.009 0.01,-0.0168 0.015,-0.0258 -0.97331,-1.17787 -1.86135,-2.41538 -2.65978,-3.70261 z m 16.09772,1.72909 c -0.60956,0.81808 -1.18505,1.66429 -1.72444,2.53731 0.0969,0.58786 0.21684,1.17157 0.35243,1.7508 l 13.94592,2.16111 c -2.27883,-0.51659 -4.52991,-1.32311 -6.70398,-2.44068 -2.1648,-1.1128 -4.12643,-2.46562 -5.86993,-4.00854 z"
+       id="rect14"
+       inkscape:connector-curvature="0"
+       inkscape:export-xdpi="90"
+       inkscape:export-ydpi="90" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:10.58333302px;line-height:1.25;font-family:NanumSquare;-inkscape-font-specification:'NanumSquare, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:0.26458332"
+       x="104.60928"
+       y="129.9146"
+       id="text12"
+       inkscape:export-xdpi="90"
+       inkscape:export-ydpi="90"><tspan
+         sodipodi:role="line"
+         id="tspan10"
+         x="104.60928"
+         y="129.9146"
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:10.58333302px;font-family:NanumSquare;-inkscape-font-specification:'NanumSquare, Normal';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-feature-settings:normal;text-align:start;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;stroke-width:0.26458332">D4 project</tspan></text>
+    <g
+       id="layer1-5"
+       inkscape:label="Layer 1"
+       transform="matrix(0.09223218,0,0,0.09223218,-171.72107,72.322412)">
+      <path
+         sodipodi:nodetypes="ssssscccccccscccccccccsccccccccccccccscccccscccccscccccccccccccccscccccccccccccccscccccccccccccccccccccsccccccccccccccccccc"
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:condensed;font-size:medium;line-height:125%;font-family:Impact;-inkscape-font-specification:'Impact Condensed';letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+         d="m 388.29298,290.9117 c -153.01739,0 -241.25616,90.87962 -241.25616,243.89701 0,153.01739 89.55919,239.93573 242.57658,239.93573 153.01739,0 239.93574,-92.20004 239.93574,-245.21743 0,-153.01739 -88.23877,-238.61531 -241.25616,-238.61531 z m -2.76171,16.35376 c -29.51714,11.8672 -57.00128,27.738 -81.74219,46.9805 3.05781,-11.8319 6.85016,-23.3652 11.3125,-34.5586 22.66416,-7.86905 46.44101,-12.06265 70.42969,-12.4219 z m 47.9375,4.5098 h 0.002 c 13.35188,2.78086 26.42326,6.76995 39.05273,11.918 -8.12715,6.9197 -16.02221,14.1646 -23.625,21.7675 -25.92616,25.9261 -47.93531,55.0351 -65.66992,86.4004 -0.74161,-0.0686 -1.48573,-0.10636 -2.23047,-0.1133 -14.88771,-10e-4 -26.9572,12.06739 -26.95703,26.9551 0.009,6.81191 2.59623,13.36791 7.24219,18.3496 -8.67819,21.1345 -15.56893,43.0055 -20.55078,65.3868 -9.05823,-2.9977 -17.91624,-6.4299 -26.55274,-10.2715 -6.16061,-15.8566 -10.95967,-32.3947 -14.27343,-49.4649 9.01496,-4.60666 14.68849,-13.87623 14.68945,-24 -0.015,-12.18011 -8.19624,-22.8368 -19.95899,-25.998 -0.0352,-1.863 -0.0664,-3.7281 -0.0664,-5.5996 0,-14.6048 1.08998,-28.9504 3.16992,-42.9727 38.08103,-34.2597 84.45169,-59.4545 135.72852,-72.3574 z m -142.17579,17.6074 c -4.89079,14.6603 -8.78027,29.7762 -11.43945,45.3184 -25.96959,24.3501 -48.11135,52.7352 -65.42383,84.1484 -8.95905,-10.1637 -17.18309,-20.9831 -24.66406,-32.3379 22.6066,-42.38392 58.18438,-76.42038 101.52734,-97.1289 z m 200.58985,3.2598 c 62.92776,32.65729 106.78265,93.06388 118.3457,163.0117 -8.0127,6.2583 -16.36608,12.1012 -25.01758,17.5098 -4.8786,-4.17086 -11.08542,-6.46397 -17.5039,-6.4668 -14.88541,9.2e-4 -26.95219,12.06769 -26.95313,26.9531 0.005,0.73287 0.0392,1.46524 0.10352,2.1953 -33.5929,13.6731 -70.32308,21.2422 -108.86719,21.2422 -25.16178,0 -49.56855,-3.2023 -72.83984,-9.2149 4.67221,-21.334 11.16538,-42.1845 19.36132,-62.3398 0.82641,0.0799 1.65607,0.12165 2.48633,0.125 14.88619,-9.2e-4 26.9533,-12.06891 26.95313,-26.9551 -0.006,-6.90389 -2.66004,-13.54246 -7.41602,-18.5469 16.77754,-29.4391 37.52736,-56.7694 61.90821,-81.1503 9.36684,-9.3668 19.24931,-18.0882 29.43945,-26.3633 z m -215.71289,72.8222 c -0.49561,7.1503 -0.75391,14.3653 -0.75391,21.6407 0,2.5177 0.0414,5.0259 0.10156,7.5293 -9.09146,4.57888 -14.82796,13.88887 -14.83007,24.0683 0.0159,12.24176 8.27927,22.93552 20.12109,26.0391 2.2578,11.9378 5.19291,23.6385 8.78125,35.0508 -22.4913,-12.6967 -43.11286,-28.3061 -61.35352,-46.3242 13.01058,-24.7611 29.16093,-47.6049 47.9336,-68.004 z m -95.8086,40.9844 c 7.63187,10.6868 15.88564,20.8996 24.78321,30.5156 -17.20955,36.2207 -28.19151,75.9638 -31.56055,117.8438 -0.58855,-0.4355 -1.14088,-0.9165 -1.72656,-1.3555 -5.66376,-19.93642 -8.54583,-40.55978 -8.56446,-61.2851 0.0318,-29.41392 5.83065,-58.5362 17.06836,-85.7188 z m 39.10938,45.0313 c 23.43666,22.2155 50.34926,40.7976 79.83008,54.8496 8.73865,20.8552 19.69605,40.551 32.58203,58.7929 -0.50308,8.1896 -0.75781,16.4157 -0.75781,24.668 0,9.9296 0.36858,19.8204 1.0957,29.6563 -14.53129,-1.9938 -28.77198,-4.8889 -42.66992,-8.6211 -0.95744,-14.14767 -12.71255,-25.13443 -26.89258,-25.1348 -7.59769,0.0119 -14.83753,3.22967 -19.9375,8.8613 -17.72806,-7.6278 -34.69618,-16.6813 -50.75,-27.0312 1.87423,-41.1961 11.52034,-80.3502 27.5,-116.041 z m 393.30664,26.1308 c 0.32893,4.8454 0.50089,9.70017 0.51562,14.5567 -0.006,14.88749 -1.49011,29.73761 -4.42968,44.332 -26.4018,23.1764 -56.34863,42.4135 -88.92383,56.793 -5.10883,-5.86151 -12.49996,-9.23137 -20.27539,-9.2442 -14.53737,0.0155 -26.44356,11.55617 -26.91211,26.086 -19.21153,5.3185 -39.09179,9.038 -59.49609,10.9785 -23.55053,-17.2526 -44.39738,-37.9695 -61.78516,-61.4141 0.87379,-11.092 2.22608,-22.1056 4.04883,-33.0156 24.46024,6.2358 50.08005,9.5586 76.4707,9.5586 41.47087,0 81.00219,-8.2445 117.12109,-23.1231 5.00563,4.7933 11.6652,7.47436 18.59571,7.4864 14.88695,1.5e-4 26.95524,-12.06815 26.95507,-26.9551 -0.01,-1.24012 -0.10498,-2.4781 -0.28515,-3.7051 6.284,-3.8997 12.42449,-8.0097 18.40039,-12.334 z m -287.41211,39.709 c 3.84084,1.4137 7.72424,2.7365 11.63477,4 -0.77163,4.465 -1.47051,8.946 -2.0918,13.4434 -3.37296,-5.6926 -6.55713,-11.5082 -9.54297,-17.4434 z m 279.7832,33.8789 c -0.59216,2.49768 -1.22701,4.98504 -1.90429,7.461 0.67728,-2.47596 1.31213,-4.96332 1.90429,-7.461 z m -5.52929,17.3906 c -14.63648,40.54248 -40.61036,76.0276 -74.83204,102.2344 -31.10059,-6.5048 -60.37386,-17.9568 -86.93164,-33.543 13.99195,-2.2263 27.71567,-5.2571 41.13282,-9.0234 5.11411,6.13721 12.68708,9.68976 20.67578,9.6992 14.79056,-0.007 26.81295,-11.9307 26.9414,-26.7207 26.0558,-11.4148 50.53768,-25.7648 73.01368,-42.6465 z m -249.33204,20.0957 c 10.50986,12.196 21.96334,23.5536 34.23243,33.9805 -1.52914,0.02 -3.05989,0.031 -4.59375,0.031 -9.53607,0 -18.98131,-0.3896 -28.32227,-1.1426 -0.87562,-10.5258 -1.32422,-21.1218 -1.32422,-31.7637 0,-0.3688 0.007,-0.7369 0.008,-1.1055 z m -158.56835,1.1192 c 14.07969,8.4548 28.77607,15.9842 44,22.5176 -0.006,0.10803 -0.0111,0.2161 -0.0156,0.3242 -1.7e-4,14.88695 12.06813,26.95526 26.95508,26.9551 8.33646,-0.0128 16.19788,-3.88226 21.29297,-10.4805 16.31094,4.4225 33.07127,7.7502 50.19922,9.8887 3.14506,25.5031 8.79272,50.5161 16.65429,74.7636 -66.99237,-11.37832 -125.2541,-52.42323 -158.51953,-111.6757 -0.24789,-4.0813 -0.47248,-8.1698 -0.5664,-12.2911 v 0 z m 216.3125,50.9824 c 28.62657,19.957 60.86262,34.9981 95.41406,44.3906 -34.79844,20.84911 -74.58624,31.9025 -115.15235,31.9903 -5.5063,-0.0735 -11.00806,-0.34905 -16.49414,-0.8262 -8.53276,-24.3698 -14.61432,-49.6337 -18.08789,-75.4219 8.65959,0.6135 17.40007,0.9317 26.21485,0.9317 9.45644,0 18.82849,-0.3595 28.10547,-1.0645 z"
+         id="path4726"
+         inkscape:connector-curvature="0" />
+    </g>
+    <path
+       inkscape:connector-curvature="0"
+       id="path4726-8"
+       d="m -46.776851,150.48165 c -8.90972,-6.01302 -19.44664,-3.96766 -25.45965,4.94208 -6.01302,8.90973 -5.20321,18.61279 3.70652,24.62581 8.90973,6.01301 20.6822,4.80151 26.69521,-4.10823 6.01302,-8.90973 3.96765,-19.44665 -4.94208,-25.45966 z m -1.58177,1.99697 c -2.18502,-0.46893 -4.40901,-0.62485 -6.60574,-0.47664 0.64299,-0.56878 1.31702,-1.0913 2.01671,-1.5677 1.62888,0.43242 3.17813,1.12259 4.58903,2.04434 z m 2.61404,2.14635 1.2e-4,8e-5 c 0.66816,0.68661 1.27251,1.43252 1.80558,2.22858 -0.74513,0.0835 -1.48954,0.19514 -2.23098,0.33908 -2.52841,0.49079 -4.9538,1.32084 -7.21897,2.45024 -0.0404,-0.0333 -0.0826,-0.0642 -0.1254,-0.0943 -0.86683,-0.58509 -2.04384,-0.35667 -2.62886,0.5102 -0.26727,0.39692 -0.37414,0.8804 -0.29938,1.35304 -1.33582,0.88958 -2.59649,1.89227 -3.76607,2.9997 -0.40963,-0.53051 -0.79054,-1.07843 -1.14246,-1.6415 0.2644,-1.16537 0.63485,-2.31692 1.11269,-3.44109 0.70594,0.086 1.40056,-0.23076 1.79844,-0.82021 0.47781,-0.70976 0.42016,-1.65178 -0.14053,-2.29809 0.0716,-0.10959 0.14235,-0.21987 0.2159,-0.32885 0.57391,-0.85039 1.20113,-1.64283 1.87324,-2.37759 3.56362,-0.4984 7.2537,-0.14322 10.74643,1.12047 z m -8.97036,-4.56176 c -0.86087,0.66144 -1.68134,1.38875 -2.44693,2.18923 -2.46899,0.39732 -4.87366,1.18001 -7.11614,2.32879 -0.12227,-0.94386 -0.17597,-1.89702 -0.16536,-2.85215 2.98185,-1.57952 6.39094,-2.16329 9.72843,-1.66587 z m 11.55163,8.07225 c 2.38078,4.37436 2.56056,9.615 0.48515,14.14222 -0.71248,0.0495 -1.42848,0.0615 -2.14477,0.0364 -0.12017,-0.43457 -0.39146,-0.81199 -0.76508,-1.06438 -0.86677,-0.58489 -2.04355,-0.35645 -2.62855,0.51024 -0.0286,0.0428 -0.0551,0.087 -0.0805,0.13174 -2.49332,-0.52393 -4.92943,-1.52657 -7.17373,-3.04121 -1.46509,-0.98876 -2.76039,-2.13432 -3.87913,-3.39889 1.11039,-1.05861 2.30782,-2.01752 3.57708,-2.86903 0.0447,0.0374 0.0914,0.0725 0.13973,0.10516 0.86682,0.58492 2.04368,0.35643 2.62862,-0.51035 0.27089,-0.40227 0.37729,-0.89307 0.29702,-1.37135 2.13375,-1.05485 4.41593,-1.83082 6.79364,-2.29237 0.91348,-0.17731 1.83161,-0.2968 2.75014,-0.3782 z m -15.42194,-4.2365 c -0.30982,0.39687 -0.60843,0.80679 -0.89433,1.23042 -0.0989,0.1466 -0.19501,0.29432 -0.29007,0.44232 -0.70929,-0.0907 -1.40916,0.22602 -1.8093,0.81866 -0.48023,0.71336 -0.41921,1.66081 0.14835,2.30686 -0.33765,0.78382 -0.62654,1.58046 -0.86607,2.38598 -0.81066,-1.62312 -1.398,-3.34236 -1.75206,-5.10828 1.7306,-0.9305 3.56865,-1.62598 5.46334,-2.07606 z m -7.18917,-1.37853 c 0.0244,0.92216 0.10369,1.84117 0.2439,2.75072 -2.4254,1.43274 -4.6266,3.31532 -6.4685,5.62148 -0.0171,-0.0485 -0.0304,-0.0981 -0.0473,-0.14676 0.45364,-1.3834 1.09625,-2.69749 1.90959,-3.90499 1.15752,-1.71157 2.63976,-3.17927 4.36227,-4.32043 z m 0.50766,4.15889 c 0.49165,2.21451 1.32848,4.35406 2.49286,6.33075 -0.31069,1.55773 -0.44665,3.13514 -0.41318,4.70368 -0.35109,0.45712 -0.68918,0.92608 -1.01346,1.40659 -0.3902,0.57817 -0.7574,1.16856 -1.10156,1.76986 -0.76776,-0.68711 -1.48319,-1.41529 -2.14575,-2.17875 0.50016,-0.86142 0.24746,-1.96305 -0.57818,-2.52029 -0.44279,-0.29797 -0.99085,-0.39502 -1.50911,-0.26751 -0.73251,-1.14079 -1.36474,-2.33474 -1.8928,-3.56823 1.72799,-2.32508 3.82826,-4.22584 6.16123,-5.67607 z m 21.87418,16.97701 c -0.17125,0.29505 -0.352,0.5845 -0.54202,0.86785 -0.58542,0.86657 -1.25533,1.67297 -2.00001,2.40724 -2.44803,0.312 -4.94769,0.25532 -7.40951,-0.18749 -0.0671,-0.54206 -0.36506,-1.02873 -0.8173,-1.33502 -0.84687,-0.57068 -1.99385,-0.36626 -2.59209,0.46136 -1.32763,-0.44525 -2.63136,-1.0099 -3.89569,-1.69872 -0.69332,-1.93002 -1.09307,-3.95551 -1.18422,-6.00389 0.48677,-0.61151 0.99829,-1.19966 1.53314,-1.76329 1.17921,1.32429 2.54039,2.52453 4.07704,3.56158 2.41472,1.62966 5.04047,2.70304 7.72824,3.25604 0.10311,0.4758 0.38552,0.8936 0.78858,1.16665 0.86683,0.58502 2.04376,0.35656 2.62876,-0.51027 0.0481,-0.0726 0.0916,-0.14821 0.12893,-0.22698 0.51915,0.0199 1.03821,0.0219 1.55609,0.005 z m -18.29554,-8.9821 c 0.1681,0.23324 0.34223,0.46286 0.52028,0.6901 -0.22039,0.22967 -0.43717,0.46313 -0.65008,0.70058 0.0273,-0.46401 0.0704,-0.92776 0.1298,-1.39068 z m 14.9596,12.9671 c -0.13263,0.12217 -0.26734,0.24205 -0.40406,0.35961 0.13675,-0.11754 0.27146,-0.23742 0.40406,-0.35961 z m -1.00534,0.79534 c -2.4454,1.7855 -5.35222,2.831 -8.37466,3.01217 -1.55528,-1.6009 -2.80974,-3.41804 -3.74365,-5.36921 0.9022,0.4202 1.82038,0.78303 2.74963,1.09097 0.0566,0.55832 0.35795,1.06276 0.82274,1.37724 0.86149,0.5808 2.03007,0.35896 2.61873,-0.49717 1.9657,0.35925 3.95512,0.48573 5.92721,0.386 z m -15.30752,-8.62772 c 0.13271,1.12313 0.35329,2.23453 0.65795,3.32379 -0.0896,-0.0593 -0.17929,-0.11859 -0.26861,-0.17887 -0.55525,-0.37473 -1.08989,-0.7686 -1.60419,-1.17952 0.36264,-0.64728 0.75292,-1.28188 1.17111,-1.90152 0.0145,-0.0215 0.0294,-0.0427 0.0439,-0.0641 z m -9.27692,-6.166 c 0.48758,1.04557 1.04743,2.0615 1.67713,3.04017 -0.005,0.006 -0.009,0.0122 -0.0136,0.0183 -0.585,0.86682 -0.35654,2.04375 0.51028,2.62875 0.48581,0.32701 1.09572,0.41046 1.65168,0.22648 0.77594,0.89847 1.62108,1.75085 2.53435,2.54843 -0.81905,1.60857 -1.47312,3.28692 -1.96821,5.00771 -3.45363,-3.29507 -5.23312,-7.97446 -4.84165,-12.73176 0.14595,-0.24737 0.29352,-0.49428 0.45,-0.73794 v 0 z m 10.5918,11.46882 c 0.8826,2.28696 2.16855,4.42951 3.81128,6.33415 -2.8455,-0.15346 -5.59657,-1.07337 -7.96207,-2.66236 -0.31782,-0.22052 -0.62726,-0.45288 -0.92796,-0.69623 0.46081,-1.75428 1.09948,-3.4643 1.9106,-5.10238 0.48012,0.37602 0.97651,0.73805 1.48977,1.08444 0.55062,0.3716 1.11043,0.719 1.67834,1.04244 z"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:condensed;font-size:medium;line-height:125%;font-family:Impact;-inkscape-font-specification:'Impact Condensed';letter-spacing:0px;word-spacing:0px;fill:#fcaf3e;fill-opacity:1;stroke:none;stroke-width:0.07024653px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       sodipodi:nodetypes="ssssscccccccscccccccccsccccccccccccccscccccscccccscccccccccccccccscccccccccccccccsccccccccccccccccccccccccccccccccccccccccccccscc" />
+    <path
+       inkscape:connector-curvature="0"
+       id="path4726-8-2"
+       d="m -55.852555,197.47881 c -8.909721,-6.01302 -19.446641,-3.96766 -25.459651,4.94208 -6.01302,8.90973 -5.20321,18.6128 3.70652,24.62581 8.90973,6.01301 20.6822,4.80151 26.695209,-4.10823 6.013021,-8.90973 3.967652,-19.44665 -4.942078,-25.45966 z m -1.581772,1.99697 c -2.185019,-0.46893 -4.409009,-0.62485 -6.605739,-0.47664 0.64299,-0.56878 1.31702,-1.0913 2.01671,-1.5677 1.62888,0.43242 3.17813,1.12259 4.589029,2.04434 z m 2.614041,2.14635 1.19e-4,8e-5 c 0.66816,0.68661 1.272511,1.43252 1.80558,2.22858 -0.74513,0.0835 -1.489538,0.19514 -2.23098,0.33908 -2.528408,0.49079 -4.953799,1.32084 -7.218969,2.45024 -0.0404,-0.0333 -0.0826,-0.0642 -0.1254,-0.0943 -0.86683,-0.58509 -2.04384,-0.35667 -2.62886,0.5102 -0.26727,0.39692 -0.37414,0.8804 -0.29938,1.35304 -1.33582,0.88958 -2.59649,1.89227 -3.76607,2.9997 -0.40963,-0.53051 -0.79054,-1.07843 -1.14246,-1.6415 0.2644,-1.16537 0.63485,-2.31692 1.11269,-3.44109 0.70594,0.086 1.40056,-0.23076 1.79844,-0.82021 0.47781,-0.70976 0.42016,-1.65178 -0.14053,-2.29809 0.0716,-0.10959 0.14235,-0.21987 0.2159,-0.32885 0.57391,-0.85039 1.20113,-1.64283 1.87324,-2.37759 3.56362,-0.4984 7.253701,-0.14322 10.746431,1.12047 z m -8.97036,-4.56176 c -0.86087,0.66144 -1.68134,1.38875 -2.44693,2.18923 -2.46899,0.39732 -4.87366,1.18001 -7.11614,2.32879 -0.12227,-0.94386 -0.17597,-1.89702 -0.16536,-2.85215 2.98185,-1.57952 6.39094,-2.16329 9.72843,-1.66587 z m 11.55163,8.07225 c 2.380779,4.37436 2.56056,9.615 0.48515,14.14222 -0.71248,0.0495 -1.42848,0.0615 -2.144771,0.0364 -0.120168,-0.43457 -0.391459,-0.81199 -0.765079,-1.06438 -0.86677,-0.58489 -2.043549,-0.35645 -2.628551,0.51024 -0.0286,0.0428 -0.0551,0.087 -0.0805,0.13174 -2.493319,-0.52393 -4.929429,-1.52657 -7.173729,-3.04121 -1.46509,-0.98876 -2.76039,-2.13432 -3.87913,-3.39889 1.11039,-1.05861 2.30782,-2.01752 3.57708,-2.86903 0.0447,0.0374 0.0914,0.0725 0.13973,0.10516 0.86682,0.58492 2.04368,0.35643 2.62862,-0.51035 0.27089,-0.40227 0.37729,-0.89307 0.29702,-1.37135 2.13375,-1.05485 4.415929,-1.83082 6.793641,-2.29237 0.913479,-0.17731 1.83161,-0.2968 2.75014,-0.3782 z m -15.42194,-4.2365 c -0.30982,0.39687 -0.60843,0.80679 -0.89433,1.23042 -0.0989,0.1466 -0.19501,0.29432 -0.29007,0.44232 -0.70929,-0.0907 -1.40916,0.22602 -1.8093,0.81866 -0.48023,0.71336 -0.41921,1.66081 0.14835,2.30686 -0.33765,0.78382 -0.62654,1.58046 -0.86607,2.38598 -0.81066,-1.62312 -1.398,-3.34236 -1.75206,-5.10828 1.7306,-0.9305 3.56865,-1.62598 5.46334,-2.07606 z m -7.18917,-1.37853 c 0.0244,0.92216 0.10369,1.84117 0.2439,2.75072 -2.4254,1.43274 -4.6266,3.31532 -6.4685,5.62148 -0.0171,-0.0485 -0.0304,-0.0981 -0.0473,-0.14676 0.45364,-1.3834 1.09625,-2.69749 1.90959,-3.90499 1.15752,-1.71157 2.63976,-3.17927 4.36227,-4.32043 z m 0.50766,4.15889 c 0.49165,2.21451 1.32848,4.35406 2.49286,6.33075 -0.31069,1.55773 -0.44665,3.13514 -0.41318,4.70368 -0.35109,0.45712 -0.68918,0.92608 -1.01346,1.40659 -0.3902,0.57817 -0.7574,1.16856 -1.10156,1.76986 -0.76776,-0.68711 -1.48319,-1.41529 -2.14575,-2.17875 0.50016,-0.86142 0.24746,-1.96305 -0.57818,-2.52029 -0.44279,-0.29797 -0.99085,-0.39502 -1.50911,-0.26751 -0.73251,-1.14079 -1.36474,-2.33474 -1.8928,-3.56823 1.72799,-2.32508 3.82826,-4.22584 6.16123,-5.67607 z m 21.87418,16.97701 c -0.171251,0.29505 -0.351999,0.5845 -0.54202,0.86785 -0.58542,0.86658 -1.255329,1.67297 -2.000009,2.40724 -2.448031,0.312 -4.947691,0.25532 -7.409511,-0.18749 -0.0671,-0.54205 -0.36506,-1.02873 -0.8173,-1.33502 -0.84687,-0.57068 -1.99385,-0.36626 -2.59209,0.46137 -1.32763,-0.44526 -2.63136,-1.00991 -3.89569,-1.69872 -0.69332,-1.93003 -1.09307,-3.95552 -1.18422,-6.0039 0.48677,-0.61151 0.99829,-1.19966 1.53314,-1.76329 1.17921,1.32429 2.54039,2.52453 4.07704,3.56158 2.41472,1.62966 5.04047,2.70304 7.728239,3.25604 0.103111,0.4758 0.385522,0.8936 0.78858,1.16665 0.866831,0.58502 2.043761,0.35656 2.62876,-0.51027 0.0481,-0.0726 0.0916,-0.14821 0.128932,-0.22697 0.519149,0.0199 1.038209,0.0219 1.556088,0.005 z m -18.29554,-8.9821 c 0.1681,0.23324 0.34223,0.46286 0.52028,0.6901 -0.22039,0.22967 -0.43717,0.46313 -0.65008,0.70058 0.0273,-0.46401 0.0704,-0.92776 0.1298,-1.39068 z m 14.959599,12.96711 c -0.13263,0.12216 -0.26734,0.24204 -0.404058,0.3596 0.13675,-0.11753 0.27146,-0.23741 0.404058,-0.3596 z m -1.00534,0.79534 c -2.445399,1.78549 -5.352219,2.83099 -8.374659,3.01217 -1.55528,-1.60091 -2.80974,-3.41805 -3.74365,-5.36922 0.9022,0.42021 1.82038,0.78303 2.74963,1.09097 0.0566,0.55832 0.35795,1.06276 0.82274,1.37725 0.86149,0.5808 2.03007,0.35895 2.61873,-0.49718 1.9657,0.35925 3.95512,0.48574 5.927209,0.38601 z m -15.307519,-8.62773 c 0.13271,1.12313 0.35329,2.23453 0.65795,3.32379 -0.0896,-0.0593 -0.17929,-0.11859 -0.26861,-0.17887 -0.55525,-0.37473 -1.08989,-0.7686 -1.60419,-1.17952 0.36264,-0.64728 0.75292,-1.28188 1.17111,-1.90152 0.0145,-0.0215 0.0294,-0.0427 0.0439,-0.0641 z m -9.27692,-6.166 c 0.48758,1.04557 1.04743,2.0615 1.67713,3.04017 -0.005,0.006 -0.009,0.0122 -0.0136,0.0183 -0.585,0.86682 -0.35654,2.04376 0.51028,2.62875 0.48581,0.32702 1.09572,0.41046 1.65168,0.22649 0.77594,0.89847 1.62108,1.75085 2.53435,2.54842 -0.81905,1.60857 -1.47312,3.28693 -1.96821,5.00772 -3.45363,-3.29507 -5.23312,-7.97446 -4.84165,-12.73177 0.14595,-0.24737 0.29352,-0.49428 0.45,-0.73793 v 0 z m 10.5918,11.46882 c 0.8826,2.28696 2.16855,4.42951 3.81128,6.33415 -2.8455,-0.15346 -5.59657,-1.07336 -7.96207,-2.66235 -0.31782,-0.22053 -0.62726,-0.45289 -0.92796,-0.69623 0.46081,-1.75428 1.09948,-3.46431 1.9106,-5.10239 0.48012,0.37602 0.97651,0.73805 1.48977,1.08444 0.55062,0.3716 1.11043,0.719 1.67834,1.04244 z"
+       style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:condensed;font-size:medium;line-height:125%;font-family:Impact;-inkscape-font-specification:'Impact Condensed';letter-spacing:0px;word-spacing:0px;fill:#ce5c00;fill-opacity:1;stroke:none;stroke-width:0.07024653px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+       sodipodi:nodetypes="ssssscccccccscccccccccsccccccccccccccscccccscccccscccccccccccccccscccccccccccccccsccccccccccccccccccccccccccccccccccccccccccccscc" />
+  </g>
+</svg>
diff --git a/docs/logos/small.png b/docs/logos/small.png
new file mode 100644
index 0000000..d24793d
Binary files /dev/null and b/docs/logos/small.png differ
diff --git a/docs/logos/text12.png b/docs/logos/text12.png
new file mode 100644
index 0000000..63fe5a0
Binary files /dev/null and b/docs/logos/text12.png differ