added stabilized event to trigger storePositions()

docs/graph.html

@@ -2002,6 +2002,15 @@ graph.off('select', onSelect);
             </ul>
         </td>
     </tr>
+    <tr>
+        <td>stabilized</td>
+        <td>Fired when the graph has been stabilized after initialization. This event can be used to trigger the .storePosition() function after stabilization.</td>
+        <td>
+            <ul>
+                <li><code>iterations</code>: number of iterations used to stabilize</li>
+            </ul>
+        </td>
+    </tr>
 </table>
 
 

src/graph/Graph.js

@@ -1724,6 +1724,7 @@ Graph.prototype._stabilize = function() {
   }
 
   this.zoomExtent(false,true);
+  this.emit("stabilized",{iterations:count});
 };