Add initial loading scene.
Support loading scene from the game scene.
Pop the scene first before triggering signal.
Hook dev branch warning into loading scene.
Slide up to make way for the loading scene.
Set proper default name.
Merge remote-tracking branch 'origin/master' into loading
Allow custom loading scenes.
Allow scenes to schedule work items to load.
Assign names to loaders.
Schedule loading with the LoaderScene.
Merge branch 'master' into loading
Adjust relative include path.