Localization and SEO Asides are not displayed anymore when creating a Document.
Localization Aside is not displayed anymore when there is only one language.
Fixed `url-match-class` directive when there is a query string.
Added Timeline Aside for all editable documents.
Added `rest.php/admin/documentList` action that returns a collection of Documents from the given array of IDs.
Added `value-ids` attribute on pickers: if true, ngModel's value is an ID (or an array of IDs) instead of a Document (or array of Documents).
Enhanced styles.
Merge pull request #534 from fredericbonjour/Admin

Timeline and localization Asides. Added `value-ids` attribute on pickers. Various style fixes.