Update documentation for app-wide configuration of options
Release version 1.5.0
Refactored actual header injection into separate function
Add Vary header setting to follow w3 suggestions
Fix module docstring
Bump Version number to 1.6.0

version bump
Add support for Python 3.X on Pypi
Update documentation of each parameter
Set travis to release to Pypi
Update travis.yml to deploy all branches when tagged
Include wheel distribution when pushing to Pypi
Force Travis.ci to install wheels inside of the virtualenv
Fix missing max-age support in application-level config
Bump version to 1.6.1
WIP test refactor
WI{
WIP
Add TestMaxAge Appwide tests
Add methods appwide configuration test cases
Add appwide options test case