GSON class is retrieved from the RESTful server to assign a global UUID to a plugin
Metadata wrapper for persistence library (Hibernate?)
Plugins are assigned their own MetadataStore. Metadata is mapped to the plugin's UUID, and is retrieved using this persistent class (eventually).
Added Hibernate as a Maven dependency
Added Owner and its implementation
Renamed MetadataUtils to MetadataUtilsImpl in the implementation to identify from the API