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.
[Bounding] Minor JavaDoc fix
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
Updates JOGL (2.2.0)
Ports all changes done on the official renderer during several months to the JOGL renderer (I thank a lot the lazy developers)
Let triangle intersections fall right on the edge
the diagonal.
Allow the center to be set without creating a
new Vector3f first.
Avoid allocation of a temporary float[] array
and avoid allocation of a needless Vector3f array.
Keep the scene and processor lists as SafeArrayList
for faster/cleaner iteration.
Avoid per-render iterator allocations by using the
SafeArrayList.getArray() method.
Commented out the onFrameChange() in update() because
its redundant.
Modified setGuiBounding to call the new setCenter(x,y,z)
method instead of allocating a Vector3f each time. (This
method is called any time someone sneezes.)
Fixed a missing line feed in a javadoc comment.