ACCUMULO-1217 Add documentation about start-all.sh and start-here.sh to recover from process failure.
ACCUMULO-1217 Includes notes on monitor and tracer in component list.

Also expanded on the ability to run hot-spares with the GC and monitor
(master already had a note about this) that perform automatic failover
when the active instance dies.
ACCUMULO-1217 Add in missing comment character from license header
Merge branch '1.6.0-SNAPSHOT'