Sidebar stuff is now properly done in a loader (and in seperate files)

CURA-1036

resources/qml/SidebarContents.qml

@@ -0,0 +1,43 @@
+// Copyright (c) 2016 Ultimaker B.V.
+// Cura is released under the terms of the AGPLv3 or higher.
+
+import QtQuick 2.2
+import QtQuick.Controls 1.1
+import QtQuick.Controls.Styles 1.1
+import QtQuick.Layouts 1.1
+
+import UM 1.2 as UM
+import Cura 1.0 as Cura
+
+StackView
+{
+    id: sidebarContents
+
+    delegate: StackViewDelegate
+    {
+        function transitionFinished(properties)
+        {
+            properties.exitItem.opacity = 1
+        }
+
+        pushTransition: StackViewTransition
+        {
+            PropertyAnimation
+            {
+                target: enterItem
+                property: "opacity"
+                from: 0
+                to: 1
+                duration: 100
+            }
+            PropertyAnimation
+            {
+                target: exitItem
+                property: "opacity"
+                from: 1
+                to: 0
+                duration: 100
+            }
+        }
+    }
+}