Added a Box2D class to load the natives.
Merge branch 'master' of https://github.com/libgdx/libgdx into box2dinit
GWT emulation.
Box2D is final and has a private ctor.
Merge pull request #2394 from nooone/box2dinit

Added a Box2D class to load the natives.
Merge pull request #2411 from vmilea/batch_fixes

misc Batch improvements
update GWT Matrix4