beginning separating pnetu into two separate libraries, so pnet client can be used without unity.
Merge branch 'master' into PNetC
Merge branch 'master' into PNetC

Conflicts:
	PNetU/NetworkView.cs
	PNetU/PNet.cs
*everything might work now.
*moved instance code for unity engine hook to its class (singleton pattern)
*some modifications to how networkedsceneobject works
*cleaned out more of PNetU.Net class to be as minimal as possible
*modified how PNetU.Net is used. No longer derivation of PNetC, and just has a Setup method
*PNetC.Net is back to being a static class - classes should not be deriving from it.
*updated example to use PNetC changes
*updated client and server example comments