Dropping support for 2.6

Author: shubhangiKishore

.travis.yml

@@ -1,7 +1,6 @@
 language: python
 
 python:
-    - "2.6"
     - "2.7"
     - "pypy"
     - "3.3"
@@ -13,8 +12,6 @@ matrix:
         - python: "pypy"
 
 install:
-    - pip install --upgrade pip
-    - pip install --upgrade pillow
     - pip install --upgrade --pre setuptools
     - if [ "$TRAVIS_PYTHON_VERSION" == "2.6" ]; then pip install unittest2; fi
     - pip install future