Change configure option for redhat
Revert "Detect device orientation when initalizing iOS capture device"

This reverts commit 1451d9c76af5741f89d21bc96ab40032647ffa7a.
Fix preview orientation discrepancies in iOS.
This was due to a missing filter call to setup the 
preview orientation in the stream establishment.
Rename tool function.
Fix compilation with Visual Studio.
Allow compilation with video enabled using cmake.
Fix compilation of genericplc on Windows with Visual Studio.
Add generation of gitversion.h and improve generation of basedescs.h and voipdescs.h.
Install pdb file for Debug configuration on Windows when using cmake.
Add multicore configuration for vp8
Add support for compilation with cmake on Mac OS X.
limit macosx version to 10.6