Admin -> Loader reference removed
RegisterSourceDataset implemented
Merge pull request #17 from IDgis/service

RegisterSourceDataset implemented
Added list view for source datasets with filtering on datasource and
category.
Added DATA_SOURCE to EntityType enum.
Made domain queries serializable.
Added a list query for source datasets with filtering.
Rudimentary listing of source datasets with filtering.
Dataset status is displayed on the dashboard.
Merge pull request #18 from IDgis/publisher-web-list-datasources

Publisher web list datasources