first try instant scrolling, then delayed

js/websockets.js

@@ -342,14 +342,16 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
     $rootScope.scrollToBottom = function() {
         // FIXME doesn't work if the settimeout runs without a short delay
         // 300 ms seems to do the trick but creates a noticable flickr
-        $timeout(function() {
+        var scroll = function() {
             var readmarker = document.getElementById('readmarker');
             if(readmarker) {
               readmarker.scrollIntoView();
             }else{
                 window.scroll(0, document.documentElement.scrollHeight - document.documentElement.clientHeight);
             }
-        }, 300);
+        }
+        scroll();
+        $timeout(scroll, 300);
     }
 
     $scope.sendMessage = function() {