Change BeaconService to send its information to the loopback address, with the loopback address as a return address; this is in addition to its broadcast to other hosts. Enables BeaconService to work when no external network address is available.
Finish setting up jmock expectations prior to starting ReplicatorInstance in ReplicatorElectionTest to prevent ConcurrentModificationException seen in #311 (resolves #311)
Extract BeaconService's beacon scheduling parameters into constants
Merge pull request #312 from joshua-g/beaconservice-local

Fix failing tests