Now compiles under OS X

* Added intial start on MiddleWare.. need to figure out how to delegate the signal/slot implementation smartly (not completely foreign/new to Qt devs)
* Refactored some things, added QWebResponse with a lot of stub methods
  - These will be replaced with proper methods later, was done for compiling reasons

TODO:
* Refactor tests
* Finish QWebResponse
* Implement Middleware hooks
Merge branch 'master' of github.com:Nava2/QtWebApplication