BUG-13173 Start the GC with the address parameter.

This will tell the GC to bind on the address for the system's
hostname instead of localhost as it would otherwise default to.
This fixes proper advertisement of GC address information with
accumulo 1.5.1.
BUG-13273 Remove limits on GC, monitor and tracer roles.

Multiples of these services can be run, with zk locking used
where multiple active would be problematic. Let the user choose
how many to run and let Accumulo do the rest.