Prototype of nifty-editor integration .
Fix error dialog being displayed in a headless context.

This was causing an infinite cycle of java.awt.HeadlessException in case handleError was called in an environment without display.
Add Screen blend mode.
Update javadoc for screen blend mode.
Screen blend mode for JOGL.
Screen blend mode for andriod.
Update repo
Create README.md
Update README.md
jbullet: refactor PhysiscSpace.addAll/removeAll
- only add joint with current PhysicNode is BodyA
  => avoid logging warning
  => fix a previous bug in test about getBodyA when adding/removing BodyB
- remove optimisation that by-pass routing made by add()/remove()
UndoSupport, now the editor will reload the gui only if file is changed and some property editors. Also xml auto completition and XmlNavigator
bullet: refactor PhysiscSpace.addAll/removeAll
- only add joint with current PhysicNode is BodyA
  - => avoid logging warning
  - => fix a previous bug in test about getBodyA when adding/removing BodyB
- remove optimisation that by-pass routing made by add()/remove()
fromIntARG and fromIntRGBA now returns self.
Merge pull request #165 from davidB/wip_jbullet_update

jbullet: refactor PhysiscSpace.addAll/removeAll
Merge pull request #167 from GreenCubes/master

Implemented FBX model loader
Merge pull request #169 from GreenCubes/master

Fix and extend FBX file loader
Bug fixing
Add the possibility to save on the Visual component
Code cleaning

I cleaned a bit the code creating some other packages and deleting old
unused classes
Gui pack