CFY-1185 replace 'derived_from' with 'executor' and add 'source' field
CFY-1185 fix flake
CFY-1185 change management plugin to deployment plugins
CFY-1185 fixed tests and remove redundant assertions
CFY-1185 added default_workflow plugin to exclude list
CFY-1185 remove exclude lists. now using the 'system' key work to ignore plugins
CFY-1185 fix deployment plugins when no host is defined
CFY-1185 remove plugin regex. not needed anymore
CFY-1185 fix flake
Bump version to 3.1m4
Merge branch 'master' into CFY-1185-remove-plugin-inheritance

Conflicts:
	dsl_parser/parser.py
CFY-1185 remove unused imports
CFY-1185 fix tests
CFY-1056 added properties schema type property feature
CFY-1056 fixes and improvements
CFY-1056 fix test
CFY-1056 fixed bug where intrinstic function would mess up the type validation
Merge pull request #22 from cloudify-cosmo/CFY-1056-type-field-in-properties-schema

CFY 1056 type field in properties schema
CFY-1185 add 'install' property to plugin dictionary
CFY-1185 use constants instead of strings