Merge pull request #109 from mono/master

Box2d Initialize and make Box2DTest use the Create version of the bodydef and fixturedef.
work on the box2dtest to fix the bound area edges.
Merge branch 'master' of https://github.com/totallyevil/cocos2d-xna

Conflicts:
	tests/tests/classes/tests/Box2DTest/Box2DTest.cs
index out of bounds exception fix.
Add Box2d to ios solution and comment out Console.WriteLine in b2World for now.