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
Use tolerance comparing floats.

closes #2437
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
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