* [NOD-1124] Move Router to the router package.
* [NOD-1124] Implement SetOnRouteCapacityReachedHandler.
* [NOD-1124] Use Routes instead of bare channels.
* [NOD-1124] Fix merge errors.
* [NOD-1124] Connect the Router to the Connection.
* [NOD-1124] Fix merge errors.
* [NOD-1124] Move some variables around.
* [NOD-1124] Fix unreachable code.
* [NOD-1124] Fix a variable name.
* [NOD-1124] Rename AddRoute to AddIncomingRoute.
* [NOD-1124] Rename SetRouter to Start.
* [NOD-1124] Make AddIncomingRoute create a Route by itself.
* [NOD-1124] Replace IncomingRoute with EnqueueIncomingMessage.
* [NOD-1124] Make Enqueue and Dequeue return isOpen instead of err.
* [NOD-1124] Remove writeDuringDisconnectLock.
* [NOD-1124] In sendLoop, move outgoingRoute to outside the loop.
* [NOD-1124] Start the connection loops only when Start is called.
* [NOD-1124] Replace OnIDReceivedHandler with AssociateRouterID.
* [NOD-1124] Add isOpen to Enqueue and Dequeue.
* [NOD-1124] Protect errChan from writing during disconnect.
