[ADF-551] sorting for document list (#1891)

* table cell component

- table cell component with performance improvements

* permissions and sorting fixes

- fixed ability to set default sorting
- fixed permission evaluation
- new: context menu now also works with permissions
- disabled tags column in demo shell due to performance implications

* fix unit tests

* fix tsconfig for unit testing

ng2-components/ng2-alfresco-documentlist/src/components/content-column/content-column-list.component.spec.ts

@@ -30,6 +30,8 @@ describe('ContentColumnList', () => {
         let service = new DocumentListServiceMock();
         documentList = new DocumentListComponent(service, null, null, null);
         columnList = new ContentColumnListComponent(documentList);
+
+        documentList.ngOnInit();
     });
 
     it('should register column within parent document list', () => {

ng2-components/ng2-alfresco-documentlist/src/components/content-column/content-column.component.spec.ts

@@ -29,6 +29,8 @@ describe('ContentColumn', () => {
         let service = new DocumentListServiceMock();
         documentList = new DocumentListComponent(service, null, null, null);
         columnList = new ContentColumnListComponent(documentList);
+
+        documentList.ngOnInit();
     });
 
     it('should register model within parent column list', () => {