CFY-1574 start work on ctx relationships
Merge branch 'master' into CFY-1574-relationship-ctx
CFY-1574 fix unit tests
CFY-1574 restore immutable properties
CFY-1574 python2.6 fix
CFY-1574 fix mock
CFY-1574 refix old bug (CFY-1442)
CFY-1574 bug fix and add tests
CFY-1574 add test for 2 relationship hops
CFY-1574 flake8
Merge branch 'master' into CFY-1574-relationship-ctx
CFY-1574 update documentation to state caps are deprecated
CFY-1574 update documentation
Merge pull request #74 from cloudify-cosmo/CFY-1574-relationship-ctx

Cfy 1574 relationship ctx