Merge pull request #1 from libgdx/master

update
Merge pull request #2 from libgdx/master

Update private fork
Added a void circle builder (circleLine) to create a simple circle line without any triangle
Added ellipse builder
fixed vertices and indices ensuring
fix parameters on circle
Fix on radius
Added new constructor and setter for Vector3
Override equals and hashCode on FileHandle

FileHandles having the same type and path should be considered equal.
Merge pull request #817 from VinceAngel/master

Added a void circle builder (circleLine) to create a simple circle line
Small changes to MeshBuilder
Merge pull request #827 from xoppa/3dapi

Small changes to MeshBuilder
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
Unused fields.