Order the roomEvents models from newest to oldest

Qt somehow handles scrolling on new messages on its own when the
ListView direction is bottom to top.
In normal top to bottom, manual scrolling is completly buggy.

harmonyqml/components/chat/MessageList.qml

@@ -13,18 +13,27 @@ Rectangle {
     ListView {
         id: messageListView
         anchors.fill: parent
-        model: Backend.models.roomEvents.get(chatPage.room.room_id)
         delegate: MessageDelegate {}
+        model: Backend.models.roomEvents.get(chatPage.room.room_id)
         //highlight: Rectangle {color: "lightsteelblue"; radius: 5}
 
         clip: true
         topMargin: space
         bottomMargin: space
+        verticalLayoutDirection: ListView.BottomToTop
 
         // Keep x scroll pages cached, to limit images having to be
         // reloaded from network.
         cacheBuffer: height * 6
 
-        //Component.onCompleted: positionViewAtEnd()
+        function goToEnd() {
+            messageListView.positionViewAtEnd()
+            //messageListView.flick(0, -messageListView.bottomMargin * 100)
+        }
+
+        //Connections {
+            //target: messageListView.model
+            //onChanged: goToEnd()
+        //}
     }
 }