Suspend script written by Darren Boss (@netscruff).
	new file:   scripts/suspend_instance.py
PEP8 Compliance.
	modified:   service/instance.py
Add --resume option.
	modified:   scripts/suspend_instance.py
Merge branch 'abyssinian-nightjar' of github.com:iPlantCollaborativeOpenSource/atmosphere into abyssinian-nightjar