Fix missing sound playback start/stop when using the play/pause buttons in editor toolbar. Improved sphere debug drawing. Added debug drawing to SoundSource3D. Closes #63.
change doxygen location in readme to new github location
Merge pull request #68 from friesencr/patch-1

change doxygen location in readme to new github location
Added Save function to ParticleEmitter, which dumps the parameters as XML. Added menu items to editor to load/save ParticleEmitter parameters. Closes #51.
Fix crash on empty file name.
Fix editor toolbar not resizing and ui re-layout values after resize.
Enhance toolbar editmode select icon.
Added emissive shader variations to LitSolid shader. Default emissive modulation color to white, similar to environment map color.
Add pixel & time threshold for sending a drag begin UI event. Closes #65. Removed code duplication between mouse & touch hover.
Drag-related code cleanup.
Added generated event list documentation page. Closes #66.
Fixed false positive bug in String::EndsWith().