Removes object streams.
Implements sending of state updates via UDP instead of TCP.
Implements a thread on the client side which receives packets.
Adds network comm logging.
Forces the client to process all queued updates.
Removes object stream relics from entity writer/reader.
Updates tests.
Cleans up imports.
Adds custom writers/readers for velocity and expires components.
Merge pull request #71 from absolom/network

Pull Request - Network