Added some harvest-time logic to enable ingested relationships to be handled such that:
- related object existence checking may be done (configurable with the "checkExistence" property)
- forced updating of the relationships on a harvested record (configurable with the "forceUpdate" property)
Updated release plugin settings for UoA use
[maven-release-plugin] prepare release plugin-transaction-curation-mint-1.5.2.2-UoA
[maven-release-plugin] prepare for next development iteration
Merge branch 'mint-1.5.2.2-UoA'