Upgrade js-services and update about page

package.json

@@ -8,8 +8,8 @@
     "codemirror": "^5.10.0",
     "jquery": "^2.2.0",
     "jquery-ui": "^1.10.5",
-    "jupyter-js-notebook": "^0.12.0",
-    "jupyter-js-services": "^0.5.0",
+    "jupyter-js-notebook": "^0.12.1",
+    "jupyter-js-services": "^0.6.1",
     "jupyter-js-ui": "^0.2.0",
     "jupyter-js-utils": "^0.3.0",
     "jupyter-js-widgets": "0.0.14",

src/about/plugin.ts

@@ -50,7 +50,7 @@ const aboutExtension = {
 
 <h2>Notebook</h2>
 
-<p>Opening a notebook will open a preliminary proof-of-concept notebook view. <strong>Currently, the cells are static and not executable.</strong>  Future JupyterLab demos will add dynamic cells and code execution.</p>
+<p>Opening a notebook will open a minimally featured notebook. Code execution, Markdown rendering, and basic cell toolbar actions are supported.  Future versions will add more features from the existing Jupyter notebook.</p>
 `;
     app.shell.addToMainArea(widget);
   }