Add poll editor

Implements the suggestion from Issue #34

www/help.html

@@ -104,6 +104,11 @@
                             </div>
                         </td>
                     </tr>
+                    <tr>
+                        <td><pre>/poll</pre> (no parameters)</td>
+                        <td>Moderators</td>
+                        <td>A poll editor is popped up allowing for easy creation of the poll, and allowing commas in the poll title and options</td>
+                    </tr>
                 </table>
                 <p>There are also some other chat features.  When your name appears in a message, <span class="nick-highlight">the message will be highlighted.</span>  If you type the beginning of someone's name in chat, pressing tab will attempt to autocomplete the name.</p>