improvements to serialization model
fixes to object tracking and sample; changed MOAISim.forceGC behavior when not being called from a coroutine
fixed MOAIDeserializer back compat with legacy files; fixed warning in MOAISerializeBase.cpp
fixed serializer to no longer exclude empty tables (unless object member table); fixed but in deserializer back compat change
improvements to leak tracking feature; more thorough graph traversal to include coroutines, upvalues, environments, locals and the strong ref registry table; added singleton class ref table as metatable to allow leak tracking to find refs held by global objects (such as MOAIActionMgr)
fixed crash on MOAICoroutine finish
extended leak tracking to walk stack of calling function; moved forceGC MOAILuaRuntime and changed to happen instantly
improved leak reporting - multiple paths reported, including engine internals
fixed memory cleanup issues in Box2D
fixed bugs in vsnprintf usage (STLString, ZLStream); changed 'file' param of ZLLog callback back to void* (need to redo this later)