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
more docs for Sprite.java
- Avoid NPE if atlas property is not set and throw gdx exception with error message instead
- removed unnecessary object creation
- Avoid NPE if atlas property is not set and throw gdx exception with error message instead
- removed unnecessary object creation
Fixed capacity check in collection classes
Removed repeated conditional check
Added icons and splash screens and changed app id and name for SuperJumper to make it ready for App Store.
Merge pull request #579 from hneuer/coll2

Fixed capacity check in collection classes
Merge pull request #580 from hneuer/pecond

Removed repeated conditional check
minor changes to setVertices docs
Merge pull request #581 from ntherning/superjumper-app-store-ready

Added icons and splash screens and changed app id and name for SuperJumper to make it ready for App Store
Merge pull request #577 from hneuer/tmxloader

AtlasTmxMapLoader small fixes
Merge pull request #567 from xoppa/3dapi

3dapi: add basic shadow mapping