Merge branch 'hotfix/cmake_xcode_generator'
Merge pull request #5 from elwinarens/master

Clang material Index type fix
SDLMain.m no longer included in the three_cpp source build
Merge pull request #6 from elwinarens/master

Cmake xcode generator project fix
Merge branch 'dev_r65' of https://github.com/jdduke/three_cpp into dev_r65

Conflicts:
	CMakeLists.txt