Merge branch '15.06'

* 15.06:
  Add a background to the tool additional controls
  Rescale the current layer number based on the maximum layer
  Add a text field style that can be used for generic text fields
  Implemented feature described by #30
  Handle finished signal for the ReadMeshJob started from command line args
  Updated name in menu for firmware update
  Added exception handling to listen thread join
  Render a transparent ghost of the selection when things are selected.
  Fix for #29

cura/CuraApplication.py

@@ -162,6 +162,7 @@ class CuraApplication(QtApplication):
 
             for file in self.getCommandLineOption("file", []):
                 job = ReadMeshJob(os.path.abspath(file))
+                job.finished.connect(self._onFileLoaded)
                 job.start()
 
             self.exec_()
@@ -447,3 +448,15 @@ class CuraApplication(QtApplication):
     def _onMessageActionTriggered(self, message, action):
         if action == "eject":
             self.getStorageDevice("LocalFileStorage").ejectRemovableDrive(message._sdcard)
+
+    def _onFileLoaded(self, job):
+        mesh = job.getResult()
+        if mesh != None:
+            node = SceneNode()
+
+            node.setSelectable(True)
+            node.setMeshData(mesh)
+            node.setName(os.path.basename(job.getFileName()))
+
+            op = AddSceneNodeOperation(node, self.getController().getScene().getRoot())
+            op.push()