loadVertices fix
Merge remote-tracking branch 'origin' into Scientific_OpenGL_Tutorial_03

Conflicts:
	Snake3D.xcodeproj/project.xcworkspace/xcuserdata/tzvikif.xcuserdatad/UserInterfaceState.xcuserstate
	Snake3D.xcodeproj/xcuserdata/tzvikif.xcuserdatad/xcdebugger/Breakpoints.xcbkptlist
Merge remote-tracking branch 'origin/Scientific_OpenGL_Tutorial_03' into Scientific_OpenGL_Tutorial_03

Conflicts:
	Snake3D.xcodeproj/project.xcworkspace/xcuserdata/tzvikif.xcuserdatad/UserInterfaceState.xcuserstate
	Snake3D.xcodeproj/xcuserdata/tzvikif.xcuserdatad/xcdebugger/Breakpoints.xcbkptlist
in the middle