Use annotator.publish over trigger in Guest

h/static/scripts/guest.coffee

@@ -58,7 +58,7 @@ class Annotator.Guest extends Annotator
           origin: origin
           scope: "#{scope}:provider"
           onReady: =>
-            @trigger('panelReady')
+            this.publish('panelReady')
             setTimeout =>
               event = document.createEvent "UIEvents"
               event.initUIEvent "annotatorReady", false, false, window, 0

h/static/scripts/host.coffee

@@ -35,7 +35,7 @@ class Annotator.Host extends Annotator.Guest
     app.appendTo(@frame)
 
     if options.firstRun
-      this.on 'panelReady', this.actuallyShowFrame(transition: false)
+      this.on 'panelReady', => this.actuallyShowFrame(transition: false)
 
     if @plugins.Heatmap?
       this._setupDragEvents()