Merge pull request #871 from dgough/next

Removed collada support from the encoder
Add iOS and MacOSX targets to create gameplay.framework
Removed unused script for framwork build
Fixed xcodeproject for release code sign to iphone distribution
Fixed minor bug in framework build
Remove -O1 from matrix.cpp as the problem was solved in SDK 6.1
Merge pull request #872 from mozeal/next

Added targets to Xcode project to build gameplay.framework
Fixed a bug in the encoder where point lights were converted to ambient lights when they had no decay