ibrdtn: Declare scheme type of EID as private
daemon: DiscoveryService improvements

const in constructor
new method ::update() added
daemon: DiscoveryAnnouncement renamed to DiscoveryBeacon
daemon: Initial changes for large make-over of the discovery mechanism
daemon: More const in configuration
daemon: New constructors for netconfig object
daemon: Discovery set-up routine clean-up
daemon: Add namespace to raiseEvent parameter
daemon: Make DiscoveryBeacon parameter of onAdvertiseBeacon const
daemon: New unregisterService() method added to DiscoveryAgent
daemon: IPNDAgent now registers to the DiscoveryAgent as Handler
daemon: Qualifier added to TCPConvergenceLayer method
daemon: Initialize DiscoveryAgent in the BundleCore
daemon: Register TCPConvergenceLayer as discovery handler
daemon: Add ANY interface processing to DiscoveryAgent
daemon: Add missing headers
daemon: Register UDPConvergenceLayer as Discovery handler
daemon: Register DTNTPWorker as Discovery handler
daemon: Protocol to Discovery TAG conversion added
daemon: DatagramService::getServiceTag() no longer pure virtual