CFY-415 prevent updating static properties
CFY-415 support changing runtime_properties directly
CFY-415 do not update node runtime state if no changes were made
CFY-415 do not update node runtime state if no changes were made (for real now)
CFY-415 flake8
CFY-415 update git ignore
CFY-415 flake8
Merge pull request #1 from cloudify-cosmo/feature/CFY-415-runtime-properties-changes

Runtime properties fixes