Added Array.Slice() stub
Refactored EventDispatcher

Added support for "globally" tracked events such as enter/exit frame for DisplayObjects
Cleaned up event listener handling, supported removeEvent during a dispatch correctly
Added try/catch around event dispatching
Added DeprecatedAttribute to monomac
Added support for generateMipmaps on MonoMac
Removed Texture.generateMipmaps and instead added optional parameter to uploadFromBitmapData(). This is to handle MonoMac better.
Added exception for when Bitmap loading fails
Temporarily removed DYNAMIC_SUPPORT from monomac PlayScript.Dynamic projects until it is working better