Don't specify basepython

tox automatically includes basepython definitions for all the common python versions, and will recognize it in factors of envs in the envlist.

Author: ryanhiebert

tox.ini

@@ -8,13 +8,6 @@ envlist =
  {py27,py34,py35}-django{19}
 
 [testenv]
-basepython =
- py27: python2.7
- py32: python3.2
- py33: python3.3
- py34: python3.4
- py35: python3.5
-
 commands = ./runtests.py --fast {posargs} --coverage
 setenv =
  PYTHONDONTWRITEBYTECODE=1