diff --git a/.gitignore b/.gitignore
index a99c47fd..d62fbd8b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,6 +20,7 @@ var/www/static/
 !var/www/static/js/moduleTrending.js
 !var/www/static/js/plot-graph.js
 !var/www/static/js/trendingchart.js
+var/www/templates/header.html # auto-generated
 
 # Local config
 bin/packages/config.cfg
@@ -27,3 +28,4 @@ bin/packages/config.cfg
 # installed files
 nltk_data/
 doc/all_modules.txt
+doc/module-data-flow.png # auto-generated
diff --git a/doc/module-data-flow.png b/doc/module-data-flow.png
deleted file mode 100644
index 03fd7123..00000000
Binary files a/doc/module-data-flow.png and /dev/null differ
diff --git a/var/www/static/js/indexjavascript.js b/var/www/static/js/indexjavascript.js
index 63ff50a8..47013634 100644
--- a/var/www/static/js/indexjavascript.js
+++ b/var/www/static/js/indexjavascript.js
@@ -91,7 +91,7 @@ function update_values() {
         return all_res;
     }
 
-    var updateInterval = 10000;
+    var updateInterval = 30*1000; //30s = 30*1000ms
     var options_processed_pastes = {
         series: {   shadowSize: 0 ,
                     lines: { fill: true, fillColor: { colors: [ { opacity: 1 }, { opacity: 0.1 } ] }}
diff --git a/var/www/templates/header.html b/var/www/templates/header.html
deleted file mode 100644
index 1df983a0..00000000
--- a/var/www/templates/header.html
+++ /dev/null
@@ -1,32 +0,0 @@
-<div class="navbar-header">
-    <ul class="nav navbar-nav">
-	<li id='page-index'><a href="{{ url_for('dashboard.index') }}"><i class="fa fa-dashboard fa-fw"></i> Dashboard</a></li>
-
-	<li id='page-trendingchart'><a href="{{ url_for('trendings.trending') }}"><i class="glyphicon glyphicon-stats"></i> Trending charts</a></li>
-
-	<li id='page-modulestats'><a href="{{ url_for('trendingmodules.moduletrending') }}"><i class="glyphicon glyphicon-stats"></i> Modules statistics</a></li>
-
-	<li id='page-browse'><a href="{{ url_for('browsepastes.browseImportantPaste') }}"><i class="fa fa-search-plus "></i> Browse important pastes</a></li>
-
-	<li id='page-sentiment'><a class="dropdown-toggle" data-toggle="dropdown" href="#"><i class="fa fa-heart"></i> Sentiment Analysis
-    <span class="caret"></span></a>
-    <ul class="dropdown-menu">
-      <li><a href="{{ url_for('sentiments.sentiment_analysis_trending') }}"><i class="fa fa-bar-chart-o"> </i> Sentiment trending</a></li>
-      <li><a href="{{ url_for('sentiments.sentiment_analysis_plot_tool') }}"><i class="fa fa-wrench"> </i> Sentiment plot Tool</a></li>
-    </ul>
-</li>
-
-        <li id='page-termsfrequency'><a class="dropdown-toggle" data-toggle="dropdown" href="#"><i class="fa fa-eye"></i> Terms frequency
-    <span class="caret"></span></a>
-    <ul class="dropdown-menu">
-      <li><a href="{{ url_for('terms.terms_management') }}"><i class="fa fa-gear "> </i> Terms managements</a></li>
-      <li><a href="{{ url_for('terms.credentials_tracker') }}"><i class="glyphicon glyphicon-screenshot"> </i> Credentials seeker</a></li>
-      <li><a href="{{ url_for('terms.terms_plot_top') }}"><i class="glyphicon glyphicon-fire"> </i> Terms plot top</a></li>
-      <li><a href="{{ url_for('terms.terms_plot_tool') }}"><i class="fa fa-wrench"> </i> Terms plot tool</a></li>
-    </ul>
-</li>
-
-	<li id='page-myNewModule'><a href="{{ url_for('myNewModule.myNewModule_page') }}"><i class="glyphicon glyphicon-new-window"></i> myNewModule </a></li>
-
-    </ul>
-</div>