Removed py33 from test environments.

.travis.yml

@@ -5,7 +5,6 @@ os:
 #  - osx
 env:
   - TOX_ENV=py27
-  - TOX_ENV=py33
   - TOX_ENV=py34
   - TOX_ENV=pypy
 matrix:

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py33, py34, pypy
+envlist = py27, py34, pypy
 
 [testenv]
 commands = {envpython} setup.py test