Removed 2.7_with_site_packages from python versions

.travis.yml

@@ -1,12 +1,11 @@
 language: python
 
 python:
-    - 2.7_with_system_site_packages
-    - 2.7.11
-    # - 3.3
-    # - 3.4
-    # - 3.5
-    # - nightly
+    - 2.7
+    - 3.3
+    - 3.4
+    - 3.5
+    - nightly
 
 sudo: required
 # do we need sudo? should double check
@@ -50,7 +49,7 @@ install:
     - pip install lxml exifread pillow
     - pip install git+https://github.com/Rafiot/officedissector.git
     - |
-      if [[ "$TRAVIS_PYTHON_VERSION" == 2*  ]]; then
+      if [[ "$TRAVIS_PYTHON_VERSION" == 2* ]]; then
         pip install -U oletools olefile
       fi
     # Module dependencies