update linux truth and fix test
Merge branch 'add_testing' of https://github.com/judajake/RGG into add_testing

Conflicts:
	Application/Testing/XML/create_and_save_hex_long_3D.png
	Application/Testing/XML/create_and_save_rect_long_3D.png
Merge branch 'add_testing' of https://github.com/judajake/RGG into add_testing