feat(options): Allow access to properties that are deeper down the ob…

…ject tree. (fixes #81)

components/table/ng-table.component.ts

@@ -21,7 +21,7 @@ import {NgTableSorting} from './ng-table-sorting.directive';
       </thead>
       <tbody>
       <tr *ngFor="#row of rows">
-        <td *ngFor="#column of columns">{{row[column.name]}}</td>
+        <td *ngFor="#column of columns">{{getData(row, column.name)}}</td>
       </tr>
       </tbody>
     </table>
@@ -69,4 +69,8 @@ export class NgTable {
     this.columns = [column];
     this.tableChanged.emit({sorting: this.configColumns});
   }
+
+  getData(row:any, propertyName:string) {
+    return propertyName.split('.').reduce((prev, curr) => prev[curr], row);
+  }
 }