Refs #81. Added initial sphinx documentation cruft
Refs #81. Added a gitignore
Refs #81. Added documentation requirements
Refs #81. Test building documentation
Refs #81. Moved test_requirements to requirements/testing.txt
Refs #81. Updated the testing requirements path
Refs #81. Documented how to build the documentation locally
Refs #81. Added a section on installing requirements
Refs #81. Changed ordered list numbers to # and added updating the version in docs/conf.py for sphinx
Refs #81. Updated to use dynamic numbering
Refs #81. Added a placeholder so _static persists
Merge pull request #81 from kylegibson/issue_81

Add sphinx documentation support, test build using tox