Data bindings - Update UI on registration changes

Data bindings - Tweaked UI tabs to handle a large amount of properties better
Color gradient property - Update data binding properties on stop add/remove

src/Artemis.UI/Screens/ProfileEditor/LayerProperties/DataBindings/DataBindingViewModel.cs

@@ -102,8 +102,8 @@ namespace Artemis.UI.Screens.ProfileEditor.LayerProperties.DataBindings
 
         protected override void OnInitialActivate()
         {
-            base.OnInitialActivate();
             Initialize();
+            base.OnInitialActivate();
         }
 
         private void Initialize()