Changed loading screen design. Fixed default routes inclusion.
Added possibility to declare actions directly in the `<rbs-document-list/>` template with the `<action/>` tag. Actions declared this way are temporarily registered in the `Actions` service and unregistered when the `<rbs-document-list/>` is destroyed.
Fixed '/documents/' URL for `Rbs_Tag_Tag` resources.
Fixed doc.
Dashboard: added possibility to choose tags to display on the dashboard. Clicking on a tag reveals the documents tagged with it.
Added missing image for loading screen.
Added possibility to use local actions in quick actions.
Fixed Clipboard feature.
Added "Clear clipboard" action.
Fixed doc.
Added thumbnails in Clipboard.
Merge pull request #331 from fredericbonjour/Admin

Dashboard: added possibility to choose tags to display. Fixed Clipboard.