added CCRandom.Randomize
Merge branch 'master' of https://github.com/Cocos2DXNA/cocos2d-xna
Merge branch 'master' of https://github.com/Cocos2DXNA/cocos2d-xna
tests from Java port
Beginning of a layer-flow control.
Merge branch 'master' of https://github.com/Cocos2DXNA/cocos2d-xna
Fixed bug with missing cleanup of tag dictionary when removing all children, fixing particle system batchnode that has its own child management code, and adding binary search for child insertion in the particle system batch node.
Merge pull request #327 from Cocos2DXNA/PARTICLE_BATCH_NODE_BUG_FIX

ParticleSystem bug fixing and performance enhancement.
prepare for next version - 1.0
another fix where the children by tag dictionary is not created when the children list is created.
defensive coding around a possible null reference.
Cleanup Tags routines
Merge branch 'master' of https://github.com/gena-m/cocos2d-xna
added Box2D tests: CircleStress and Liquid
fixed CCDrawingPrimitives.DrawRect
remove using ContentScaleFactor (fixed DrawPrimitiveTest)
fixed Box2D LiquidTest
added cleanup test
Fix for labels being created multiple times.

Creating the stats labels twice during macos startup would cause a GL
error.
fixed tag in CCParticleBatchNode
Merge branch 'master' of https://github.com/Cocos2DXNA/cocos2d-xna