Merge pull request #441 from xoppa/3dapi2

Update ModelLoaderTest
fixed a super nasty bug in AssetManager, concurrency is hard :)
added robovm backend, initial commit
minor ios fixups
fixed more stuff, working
added vector pinball and super jumper robovm projects. not working
fixed robovm backend graphics initialization, create was called at an unfortunate time :p, super jumper et al are working
added gdx-invaders robovm project
fixed fetch script to pull in ios robovm natives into proper location
fixed ios check in iosgl20.cpp
Merge pull request #443 from xoppa/3dapi2

Add transform to calculateBounds, fix transform
Javadocs.
added initial draft of composite shader and transform subshader
Merge branch 'master' of https://github.com/libgdx/libgdx
more changes to composite shader
more fixes
Merge pull request #444 from xoppa/3dapi2

Faster load ubjson
Merge remote-tracking branch 'origin/master'
GestureDetector no longer consumes any events

Reverting a previous change of mine. On closer inspection, having the
GestureDetector consume touch up or drag likely causes more trouble than
good.
added diffuse texture sub shader