Merge pull request #1 from libgdx/master

update
Merge pull request #2 from libgdx/master

Update private fork
Added new constructor and setter for Vector3
Added a new method to get the angle and axis
better use gdx
Separate custom code
Separate java files (swig generated)
Split wrapper (swig generated)
Update swig files
Update gdx-bullet project
Cleanup build scripts
Update VS project
Update tests
Small fixes
Merge branch 'master' into quat_branch
Fix for generating jni interface for native function with a jobject[].
Added new bullet test. Calculatest the two closest points of each convex collision shape and draws a line between the points (distance <= 100f)
Added method to draw triangle with coloured corners

Also wrote exhaustive documentation for it and original triangle method. (Not tested, but should by common sense work)
Add HorizontalGroup to GWT module
Handle mouse wheel event in GWT backend

Fixes Google Code Issue 1696.