[Reorg] Fixed build in osx with cmake.

* Modified CMake projects to reflect changes of previous commit.
* Made moai-http optional in GlutHost.cpp via MOAI_WITH_HTTP_CLIENT.
* Updated MOAIFoo and all the related files to reflect moai-core vs. moaicore change.
* Made MOAIAction's inheritance from MOAIInstanceEventSource virtual.
* Made inclusion of Box2D and Chipmunk headers optional in MOAILayer.cpp
* Updated MOAIProfilerReportBox to use the new conventions.
* Added zl-gfx/pch.h to /zl-gfx/headers.h in order to include needed data types.

TODO: GlutHost is still unable to run correctly. Bugs need to be fixed.