Delta multiplier added to Editor Properties.
New emitters are configured as bare-boned skeletons.

Initial emitter remains the same however.
ParticleEmitter now resets the active particles too.
Added bounding box for particle effects.
Edited CHANGES file.
Add DepthShader
Add basic shadow mapping
Add shadow mapping to the tests
Ellipse for cut off labels.
Small doc improvement for MathUtils
Merge pull request #571 from Lamabada/master

Small doc improvement for MathUtils
fixed Texture emulation, gdx.gwt.xml
fixed my stupid brain
A little clean up.
add method that casts to short.

Bloody annoying otherwise.
Triangulators changed to return triangle indicies. PolygonSpriteBatch refactored.
Moar utils.
Merge branch 'origin/master'
Forgot zee credits!
Fixed up PolygonSprite.