[ADF-1220] Extra data sources for Document List (#2224)

* initial trashcan support and demo page

* use testbed for unit tests

* support for restricting navigation for special data sources

* shared links mode, thumbnail fixes

* update unit tests

* improve Trashcan/SharedLinks columns

* Sites view for document list

* Favorites support for DL, upgrade to latest js-api (alpha)

* recent files support for document list

* support default presets

* readme updates and code fixes

* code fixes

* breadcrumb fixes

- show custom root node for certain scenarios
- fix css issues
- fix crash related to missing "path" property for certain scenarios

* toolbar style fixes

- addresses the shrinking issues with components embedded into toolbar (i.e. breadcrumb)

* i18n support for column presets

* unit tests

ng2-components/ng2-alfresco-core/src/components/toolbar/toolbar.component.scss

@@ -17,5 +17,6 @@ $adf-toolbar-font-size: 14px;
     .mat-toolbar-row {
         height: $adf-toolbar-height;
         font-size: $adf-toolbar-font-size;
+        white-space: normal;
     }
 }