Configuring tox to also check docs

Author: nicoddemus

tox.ini

@@ -1,9 +1,17 @@
 [tox]
 # note that tox expects interpreters to be found at C:\PythonXY,
 # with XY being python version ("27" or "34") for instance
-envlist = py26, py27, py32, py33, py34
+envlist = py26, py27, py32, py33, py34, docs
 [testenv]
 deps=pytest 
     pyside    
 commands=py.test {envsitepackagesdir}/pytestqt
 
+[testenv:docs]
+deps=pytest
+    sphinx
+changedir=docs
+setenv=
+    READTHEDOCS=True
+commands=sphinx-build -q -E -W -b html . _build\html
+