remove listening event, add logic to started and stopped events

src/packages/collaboration/lib/host-status-bar.coffee

@@ -12,15 +12,16 @@ class HostStatusBar extends View
       if @session.isListening()
         @session.stop()
       else
+        @status.addClass('running') # for immediate feedback to user
         @session.start()
 
-    @session.on 'listening started stopped participant-entered participant-exited', @update
+    @session.on 'started stopped participant-entered participant-exited', @update
     @update()
 
   update: =>
     if @session.isListening()
       @status.addClass('running')
-      @connections.show().text(@session.participants.length)
+      @connections.show().text(@session.getOtherParticipants().length)
     else
       @status.removeClass('running')
       @connections.hide()

src/packages/collaboration/lib/session.coffee

@@ -32,7 +32,9 @@ class Session
   start: ->
     @channel = @subscribe(@id)
 
-    @channel.on 'channel:closed', => @trigger 'stopped'
+    @channel.on 'channel:closed', => 
+      @listening = false
+      @trigger 'stopped'
 
     @channel.on 'channel:participant-entered', (participant) =>
       @participants.push(participant)
@@ -50,6 +52,7 @@ class Session
 
       @connectDocument()
       @channel.one 'channel:subscribed', (@participants) =>
+        @listening = true
         @trigger 'started', @getParticipants()
 
       @on 'participant-entered', =>
@@ -60,9 +63,6 @@ class Session
             repoSnapshot: repoSnapshot
           @channel.send 'welcome', welcomePackage
 
-      @listening = true
-      @trigger 'listening'
-
     else
       @channel.one 'channel:subscribed', (@participants) =>
         @channel.one 'welcome', ({doc, siteId, repoSnapshot}) =>