Merge pull request #211 from adaptivecomputing/master

Bring Green up to date with master
First stage of clock frequency and getting all unit tests working.
Fleshed out cpuclock option on qsub.
Cleaned up unit tests.
Added error codes to error database.
Got logging messages working. Logging frequency changing messages to syslog.
Torque doesn't work right with -r y flag.
Added test for adding duplicate hashes.
Added in server configuration to turn on and off frequency passing.
Don't allow running jobs to have their cpuclock value changed.
Merge branch 'feature/green' of https://github.com/adaptivecomputing/torque into feature/green
Don't allow an exclusive job to be assigned to a node that has a job running on it.
Added p-state and p-governor support for cray and bumped support version from 1.3 to 1.4
Add requested frequency to logging.
Merging master into green.
AC-6474 Coded up the -m <power state> <node list> command.
AC-6473 power state request is sent to requested pbs moms which set the node to that state.
AC-6473 MOM now sends the MAC address so the server can send a wake-on-lan signal.
Cleaned up the get mac addr routine.
Quick fix.