Fix getCenter(out)

Fix public Vector3 getCenter (Vector3 out) to actually update the out parameter
Merge pull request #2457 from skunktrading/patch-1

Fix getCenter(out)
change robovm version note

build.gradle as output by gdx-setup uses 1.0.0-alpha-04 in libgdx 1.4.1
Merge remote-tracking branch 'origin/master'
Unfixed until it can be seen a problem exists.

#2437
hopefully fix GLKViewController by always using the render thread instead of setNeedsDisplay()
fixing BoundingBox mul

multiplication on bounding box must be set to inf() before using ext().
because a transformation like a translation is not an extension of the bounding box, so ext() is not valid in this case.
boundingbox must be reset with inf() first.
Merge pull request #2469 from titoasty/master

fixing BoundingBox mul
Additional texture attributes 2, see #2321
Unit test for Bits.
Bitwise operations and equals/hashcode work even when word length differs.
initialized loop index with commonWords.
added checks for redundant calls to setPaused()
Generate variables for (external) extension versions. Ashley 1.3.1
Merge pull request #2473 from junkdog/fixing-bitset

Fixing Bits - more considerate about set bits.
Add AI to the setup
Merge pull request #2471 from sehugg/ioscontinuousrenderingfix

Fix for setContinuousRendering(false) in iOS backend
Update IOSInput
Small bugfix which ensures that the Color variable in PolygonSprite is set all over, instead of querying the vertex colors. (Which can differ from the actual set color due to packing).
Also fixes bug where current color isn't used to set vertex color when setRegion is used. (As color wasn't being maintained)
Merge pull request #2478 from codepoke/bugfix-polygonsprite_color

Small bugfix with regards to PolygonSprite Color usage