DPLY-7: Add support for ConceptSource
Updated maven-release-plugin version to 2.4.2
Fixed exception message from MetadataUtils.existing(...) and added MetadataUtils.possible(...)
* Added comment explaining plan to deprecate other methods in MetadataUtils
Fixed code comment made in last commit
Deprecated all class-specific fetch methods from MetadataUtils
Deprecated all MetadataUtils.getXX(...) methods and replaced internal usages with MetadataUtils.existing(...) and MetadataUtils.possible(...)
Added issues tracker link to README
[maven-release-plugin] prepare release 1.2
[maven-release-plugin] prepare for next development iteration
DPLY-9: Missing sync key on incoming object should lead to exception
DPLY-10: Simplify synchronizations by not using database ids
Fixed problem created by previous commit whereby sync was being confused by changing UUIDs