Incremented version number, added sphinx documentation directory.
Added basic documentation to app, controller, request, and response modules.
Update README.md
Update README.md

Fixed a mistake I just made in README.md
Slightly modified BaseEngine and added documentation for it and Jinja2Engine.
Attempted to add requirements.txt for documentation building.
Changed theme back to default (sphinx).
Changed sphinx theme to use readthedocs theme. Added more documentation.
Added documentation for ext.session.Session
Decoupled RouteMapping objects from Routes objects.
Added route priority feature.
Fixed bug in HTTPError.
Added documentation for Middleware.
Added middleware documentation.
Disabled Route priority sorting, as it's hogwash right now.
Changed wsgi output to always send strings to start_response headers
Fixed middleware loading issue where AbortRender errors would not
properly propoagate up the exit() chain. Also corrected:

 - HTTPRedirect now defaults to 302 instead of 301 status
 - HTTPServer chunk_size now defaults to 8092 bytes instead of 1024
Started moving gimme over to gevent.
Fixed a few issues with the conversion to gevent.
Fixed issues where SCRIPT_NAME wasn't altering the PATH_INFO uri stuff