MAP-961:  Removed unnecessary code
Merge branch 'develop' of https://github.com/WestCoastInformatics/OTF-Mapping-Service into develop

Conflicts:
	jpa-services/src/main/java/org/ihtsdo/otf/mapping/jpa/handlers/ReleaseHandlerJpa.java
MAP-961:  More fixes to release processing
MAP-1015: Release stats file
MAP-909:  Some files for workflow precondition checking