Drop support for EOL Python 3.3

.travis.yml

@@ -5,7 +5,6 @@ python:
 
 env:
   - TOX_ENV=py27
-  - TOX_ENV=py33
   - TOX_ENV=py34
 
 install:

setup.py

@@ -40,7 +40,6 @@ setup(
         "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 2.7",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.3",
         "Programming Language :: Python :: 3.4",
 
     ],

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py33, py34
+envlist = py27, py34
 
 [testenv]
 deps=pytest