Initial commit of a clean, working, open source AMF library

//
// Copyright (c) 2009 Chris Howie
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Added missing AMF support for Vector<> and ByteArray
Also changed parser to return native flash Array and Date
Changed AMFWriter to use native flash Array and Date
Exposed method to write amf class definition
Amf3Writer optimizations
Added Amf3String for fast AMF writes of string data
Added index to ClassDef to remove dictionary lookup
Added ability to write object header and then properties
Added StoreObject() method to store to object table
Updated all projects for AMF files
Added unsafe+ to makefiles
Merge branch 'origin/ps-amf'

Conflicts:
	mcs/class/pscorlib_aot/pscorlib_aot-monodroid.csproj
	mcs/class/pscorlib_aot/pscorlib_aot-monotouch.csproj
	mcs/class/pscorlib_aot/pscorlib_aot-net_4_0_monomac.csproj
Disable in loader.play in function unloadAndStop the "throw  new System.NotImplementedException()" , as I don't need an implementation there yet, but I need to keep going..
ByteArray -  basic implementation of ByteArray.readObject() for amf3 object only.
I tested it with a byteArray containing AMF serialized from an Array