Merge pull request #2177 from Karang/master

Use 2D transforms and mat3, update shaders
Widget clicking

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
Remove debug code

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
Adds light buffer loading
Add call to PreCommandEvent when console executes command
Remove overriden method stub
Merge pull request #2178 from Snaipe/master

Add call to PreCommandEvent when console executes command
onHover -> onMouseMoved

Signed-off-by: Walker Crouse <walkercrouse@hotmail.com>
Group Renderparts by material to speed up the gui render
Signed-off-by: Karang <arthur.hennequin@free.fr>