Fixed a g++ 4.8 compiler error about duplicate declaration.
Merge pull request #3 from Bloodknight/dev_linux_opengl

Dev linux opengl: compiler error fix
Fix circular volatile buffer on Linux.
Merge branch 'dev_linux_opengl' of D:\Torque3D\dev_linux_opengl

Conflicts:
	Engine/source/core/util/tSignal.h