-r requirements.txt

Sphinx==1.7.2
sphinx-rtd-theme==0.3.0
docutils==0.14

-r requirements.txt

Sphinx==1.7.2
sphinx-rtd-theme==0.3.0
docutils==0.14
django-extensions==1.7.7

Add django-extensions to docs requirements
Add django-extensions to docs requirements

[ci skip]
