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

Initial emitter remains the same however.
Add ScreenAdapter.java for GWT
Create ScreenAdapter.java
Merge pull request #532 from xoppa/master

Matrix4 add set with translate, rotate and scale
Fixed casting errors when not using type object array with Array.
Missing background in copy ctor.
Better focus restoration.
Don't synch for update(millis).
Merge branch 'origin/master'
Various shader changes
Allow renderable to be null
Update ShaderTest
Add user-configurable number of simultaneously playing audio sources
Use GwtTestWrapper for GWT tests
Remove Skin emulation for GWT
Make consoleLog public for easy use
Remove comment about Skin emulation
Various fixes for GWT reflection
Merge pull request #534 from manuelbua/custom-simult-audio-sources

Add user-configurable number of simultaneously playing audio sources