Merge pull request #330 from intportg/dev

Dev
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.
[UX] Improved collection plugin usability

It is also now possible to lock a collection or an item.
Public getters for a property and the document of a DocumentLink
have been introduced.
Rbs_Stock_Collection_Unit moved to DB
[FIX] cascade edit of collection item
Merge pull request #332 from franckstauffer/stock

Various improvements on stocks and collections
[NEW] New plugin Timeline
[UPDATE] Some update in User Module for Timeline
[UPDATE] Update MarkdownParser