Remove static methods in http classes, also protect Request and Response properties
Missed a new keyword
More tweaks for http classes, including footprint change for Response constructor to mimic Request a little closer
Missed App alteration for footprint change in Response
Let Slim::root() use SCRIPT_FILENAME server var
Implement sub-requests
Add arg to save matching routes
Merge branch 'develop' of github.com:codeguy/Slim into develop