expose broadcast slider so plugins can interact with it

src/static/js/timeslider.js

@@ -108,6 +108,7 @@ function init() {
     });
 
     exports.socket = socket; // make the socket available
+    exports.BroadcastSlider = BroadcastSlider; // Make the slider available
 
     hooks.aCallAll("postTimesliderInit");
   });
@@ -133,7 +134,7 @@ function sendSocketMsg(type, data)
 
 var fireWhenAllScriptsAreLoaded = [];
   
-var BroadcastSlider, changesetLoader;
+var changesetLoader;
 function handleClientVars(message)
 {
   //save the client Vars

src/templates/timeslider.html

@@ -194,7 +194,7 @@
 <!-- Bootstrap -->
 <script type="text/javascript" >
   var clientVars = {};
-  
+  var BroadcastSlider;  
   (function () {
     var pathComponents = location.pathname.split('/');
     
@@ -214,7 +214,7 @@
 
     var plugins = require('ep_etherpad-lite/static/js/pluginfw/client_plugins');
     var socket = require('ep_etherpad-lite/static/js/timeslider').socket;
-
+    var BroadcastSlider = require('ep_etherpad-lite/static/js/timeslider').BroadcastSlider;
     plugins.baseURL = baseURL;
     
     plugins.update(function () {