PEP8 Compliance.
	modified:   api/instance.py
Use pypi version of threepio.
	modified:   requirements.txt
Merge branch 'abyssinian-nightjar' of github.com:iPlantCollaborativeOpenSource/atmosphere into abyssinian-nightjar
Jenkins configuration was wrong. Missing FQDN.
	modified:   atmo.conf.dist
Add force parameter to get_cached_* methods in service.cache.
	modified:   service/cache.py