add checksum functions.
inject the checksum (sha256) in unit during publishing.
update importer, download file when not exist of has different checksum.
revert checksum generation in nodes publishing; revert checksum checking as part of decision to download associated file.
unused import.
unused constant.
963823 - Made the feed SSL options group name a bit more accurate
965743 - Changed help text to reflect the actual units
Fixed the path to core.py in client extensions dev guide
Merge pull request #497 from pulp/jcline-doc-typo-fix

Fixed the path to core.py in client extensions dev guide
878234 - use correct method on coordinator.
Merge pull request #498 from pulp/jortel-878234

878234 - use correct method on coordinator.
Merge branch 'jortel-atomic-node-publish' into jortel-956839
913670 - fix consumer group bind/unbind.
927033 - updating consumer group associate and unassociate calls to return a list of all consumers similar to repo group membership instead of just those who fulfil the search criteria, updating unit tests and documentation
Merge branch 'master' into skarmark-927033
927033 - added missing consumer group associate and unassociate webservices tests
Merge pull request #499 from pulp/jortel-913670

913670 - fix consumer group bind/unbind.
Merge branch 'pulp-2.1'
Automatic commit of package [pulp] release [2.1.2-0.1.beta].