Fixed a regression in particle system renderer, regression in particle system struct and some warnings.
Simple Clean up cuz of return types. Thank you Clang.
Shut up clang!
Removed unused stuff from tools/
Update README.md
Merge branch 'master' into 0.4.0
Merge branch 'master' of github.com:vovoid/vsxu into 0.4.0
Added unneeded Rtaudio/RtMidi files that break packaging
Merge branch '0.4.0' into 0.4.1_testmerge

Conflicts:
	engine/src/vsxfst/vsxf.cpp
	plugins/src/particlesystem.render/main.cpp
Implemented texture glist reference counting and better handling of this when deleting a texture.