indent

	modified:   cvt/io/RGBDParser.cpp
removed Semicolon

	modified:   ../../gfx/GFXEngine.h
added AGAST features

	modified:   CMakeLists.txt
	new file:   vision/features/AGAST.cpp
	new file:   vision/features/AGAST.h
	new file:   vision/features/agast/ASTDetector.h
	new file:   vision/features/agast/Agast5_8.cpp
	new file:   vision/features/agast/Agast5_8.h
	new file:   vision/features/agast/Agast7_12d.cpp
	new file:   vision/features/agast/Agast7_12d.h
	new file:   vision/features/agast/Agast7_12s.cpp
	new file:   vision/features/agast/Agast7_12s.h
	new file:   vision/features/agast/OAST9_16.cpp
	new file:   vision/features/agast/OAST9_16.h