Redmine#4761: remove unused code
Redmine#4761: acceptance test for cf-promises -T
Redmine#4761: rename ReadTimestampFromPolicyValidatedMasterfiles to ReadTimestampFromPolicyValidatedFile
Redmine#4761: GetPromisesValidatedFile() should use GetInputDir() if not hub
Redmine#4761: Add masterdir+inputdir tagging tests.  Simplify and remove dead code.
Merge pull request #1519 from tzz/feature/redmine4761-promises-validated

Redmine#4761: Clarify and fix semantics of release-ID generation