fixes for html5 support

app/assets/javascripts/channels/meeting_updates.js

@@ -55,6 +55,8 @@
               body: I18n.user_waiting_body.replace(/%{user}/, data.user).replace(/%{meeting}/, '"'+data.meeting_name+'"')
             });
           }
+        } else if(data.action === 'unable_to_join') {
+          showAlert(I18n.unable_to_join_mobile, 6000)
         }
       }
     });

app/assets/javascripts/landing.js

@@ -60,7 +60,7 @@
           jqxhr.done(function(data) {
             if (data.messageKey === 'wait_for_moderator') {
               waitForModerator(Meeting.getInstance().getURL());
-            } else {
+            } else if (data.messageKey === 'ok') {
               $(location).attr("href", data.response.join_url);
             }
           });