Added missing Decal.setRotation method.
Turn off debug for all actors when debug settings are changed.

closes #2162
Added scaleEffect(float scaleFactor) to allow particle effect scaling.
Written by brendan from LibGDX Forums: http://www.badlogicgames.com/forum/viewtopic.php?f=11&t=11599#p52184
Fixed line indent.
Merge pull request #2164 from Ncl8/master

Added ParticleEffect scaling.
Removed BOZO comment.
Fixed OrderedSet copy constructor.
Merge remote-tracking branch 'origin/master'
Added remove methods for lights.
Merge pull request #2166 from nooone/lightremove

Added remove methods for lights.
Changed parameter names.
Switched X and Y axis in the javadoc.
Merge pull request #2111 from nooone/decal

Added missing Decal.setRotation method.
Added drawStageBackground method.
Better smooth scrolling defaults.

Faster. Scrollbar drawn at visual position.
Merge remote-tracking branch 'origin/master'
Bugfix for AnimationController

When an animation has 0 seconds duration (it's still, not moving) the AnimationDesc.update() would hang indefinitely. This should make each frame consume 1 loop, though I'm not sure if this is the best way to handle this. What do you guys think?
fill out Decal with convenience methods, remove redundant axes Vectors and use stock axes vectors instead
Fixes #2170
Merge pull request #2171 from Gtoknu/patch-9

Bugfix for AnimationController