r12200: - move the the winsreplication client and server code to the packet_context

r12200: - move the the winsreplication client and server code to the packet_context
  system
- this needs to be in one big patch, because of the merging code,
  that changes client in server connections and the other way around
- use socket_connect_send/_recv() in the client code

metze
(This used to be commit f0105b7fcdc3032d22444a1973927fff2dd9a06f)