Fixes needed after merge from master

Author: StanleyGoldman

src/UnityExtension/Assets/Editor/GitHub.Unity/UI/LoadingView.cs

@@ -11,6 +11,7 @@ namespace GitHub.Unity
     class LoadingView : Subview
     {
         private static readonly Vector2 viewSize = new Vector2(300, 250);
+        private bool isBusy;
 
         private const string WindowTitle = "Loading...";
         private const string Header = "";
@@ -25,5 +26,10 @@ public override void InitializeView(IView parent)
 
         public override void OnGUI()
         {}
+
+        public override bool IsBusy
+        {
+            get { return false; }
+        }
     }
 }

src/UnityExtension/Assets/Editor/GitHub.Unity/UI/PopupWindow.cs

@@ -93,6 +93,11 @@ public override void OnSelectionChange()
             ActiveView.OnSelectionChange();
         }
 
+        public override bool IsBusy
+        {
+            get { return ActiveView.IsBusy; }
+        }
+
         public override void Finish(bool result)
         {
             OnClose.SafeInvoke(result);