#82 datatable project cleanup

basic implementation of main features:

- custom data sources
- column types
- sorting by columns
- click events

ng2-components/ng2-alfresco-datatable/src/components/datatable.component.css

@@ -11,6 +11,10 @@
     cursor: pointer;
 }
 
+:host .data-cell {
+    cursor: pointer;
+}
+
 :host .column-header {
     cursor: pointer;
     user-select: none;