Extended GenericRepository functionality
Moved fuctionality from ResourceService to SnapshotService. Added DatabaseResourceService. Added script to create resources tables. Moved LibraryService and BasicMappingInitializer from actions-common-service to actions-core, to break a dependency cycle. Actions-core now depends on actions-common-service.
Changed to used DatabaseResourceService instead of FilesystemResourceService. Added public/private resources. Updated database schema.
Merge branch 'master' of https://github.com/estebanroblesluna/abstractions
Improved a method in GenericRepository class.
Edited serverContex.xml to make the server use DatabaseResourceService instead of FilesystemResourceService.