Added boolean forceSquareOutput for Settings. This can be used to make
sure that the output images are squares. My main motivation: In OpenGL
ES 1.0, mipmaps require square textures.
Changed the commit according to Seraphim6x7 suggestion.
Merge branch 'master' of https://github.com/libgdx/libgdx.git
Clamping for value in setRange.
Allow min to be same as max.
If min is the same as max avoid division by 0.
Committed again the same changes to with the Nates fixes.
Update gdx/src/com/badlogic/gdx/math/Matrix4.java

improved the setToProjection() comment - noted on how to calculate the aspect ratio
javadoc fixups.  Add details about other backends, fixup some spelling
errors, remove stale documentation from InputProcessor, Graphics, and
Net.
Added Polygon to ShapeRenderer

It would be great to add FilledPolygon too, but I have no clue.
Add userData to btCollisionObject
Make the btCollisionWorld callbacks directors
Add btCollisionObjectWrapper
Swig generated files
Use the more general collisionobject and collisionworld instead of dynamics for the tests.
Add CollisionWorldTest
Merge pull request #224 from xoppa/bullet

Bullet, add userdata, use collisionworld instead of dynamics, implements some wrappers, add collision test
Merge pull request #223 from broken-e/master

Changed javadoc for StringBuilder append long and int to reflect no memory allocation
rectangle.overlap() and Intersector.overlapRectangles() behaves the same now.
Merge pull request #221 from xYaW/master

Added Polygon to ShapeRenderer
Merge branch 'master' of https://github.com/libgdx/libgdx
Merge pull request #216 from bitiotic/docfixes

javadoc fixups for com.badlogic.gdx