[added] MetadataService (tags)
[added] listen to deleteResource from ResourceOwner
[fixed] tags serializing, catching resource lifecycle events
[added] UT for TagManager
[Fixed] redundant module declaration in c3-next pom.xml
[added] updating tags
[fixed] updating tags & UT
[fixed] updating tags & UT
[fixed] updating tags & UT
[changed] tags deserialization
[changed] tags deserialization (not working)
Merge branch 'metadata_service' of github.com:ifunsoftware/c3-next into metadata_service
[changed] tags deserialization (almost fixed)
[changed] tags deserialization (almost fixed)
[finished] resource tags updating on delete/update/add resource events
Merge branch 'master' into metadata_service
WIP
[Fixed] make c3-metadata module work
[fixed] when parent has no tags, didn't do anything
Merge pull request #7 from ifunsoftware/metadata_service

Metadata service