Unified the way mobs are spawned (egg vs natural). Fixed deadlocks in mob moving. Fixed mob destroying code.

Should fix FS #400 and partially fix FS #381

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1626 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/Chunk.cpp

@@ -123,7 +123,7 @@ cChunk::~cChunk()
 	{
 		if (!(*itr)->IsPlayer())
 		{
-			(*itr)->Destroy();
+			(*itr)->Destroy(false);
 			delete *itr;
 		}
 	}