:::~ (CT) implemented base of spg-master / spg-worker communitation by environment

	modified:   scripts/spg-worker.py
	modified:   spg/queue/base.py
	modified:   spg/queue/torque.py
	modified:   spg/queue/base.py
	modified:   spg/queue/torque.py
:::~ (CT) Solved bug that prevented -purged dbs from rerunning again
	modified:   scripts/spg-master.py
	modified:   spg/master/exchange.py
	modified:   spg/master/masterdb.py
	modified:   spg/queue/base.py