Add join room/create room/create direct chat && small bug fixes.

qml/component/ImageStatus.qml

@@ -32,7 +32,6 @@ Item {
         layer.enabled: true
         fillMode: Image.PreserveAspectCrop
         sourceSize.width: item.width
-        sourceSize.height: item.width
 
         layer.effect: OpacityMask {
             maskSource: Item {
@@ -74,8 +73,8 @@ Item {
             hash = str.charCodeAt(i) + ((hash << 5) - hash);
         }
         var colour = '#';
-        for (var i = 0; i < 3; i++) {
-            var value = (hash >> (i * 8)) & 0xFF;
+        for (var j = 0; j < 3; j++) {
+            var value = (hash >> (j * 8)) & 0xFF;
             colour += ('00' + value.toString(16)).substr(-2);
         }
         return colour;