Added completion listener to Music
merged upstream
Change newInstance to a generic method
Add missing import
Merge branch 'master' of https://github.com/libgdx/libgdx into musiccomplete
Remove btBulletXmlWorldImporter
Merge pull request #478 from xoppa/misc

Remove btBulletXmlWorldImporter
Changed all actions that execute other code so that while executing the other code the action can't be returned to the pool. This prevents an action from being returned to the pool and reused while it is executing, which corrupts the state of the action.
Merge remote-tracking branch 'origin/master'
Fixed over state being triggered when there is no mouse.

http://www.badlogicgames.com/forum/viewtopic.php?p=43553
implemented completion listener for gwt
Merge branch 'master' of https://github.com/libgdx/libgdx into musiccomplete
Merge pull request #442 from moly/musiccomplete

Added completion listener to Music
BaseShader various changes
GWT changes

Updated SoundManager2.
Implemented touch input.
Add missing SoundManager2 files.
Merge pull request #481 from xoppa/misc

BaseShader various changes
CompositeShader, add unimplemented method to fix warning
Merge pull request #482 from semtiko/patch-2

CompositeShader, add unimplemented method to fix warning
fixed bullet include paths