A user noticed that load times on a Windows Chrome box would take minutes to load a scene. This PR addresses the way the shaders are loaded. This wasn't an issue in Linux / OSX and seemed to be a pipeline issue with D3D.
The scene toolbar now has a "..." option to spread all the secondary items in the menu when in mobile mode. Before the toolbar was too large for mobile. I also added a tutorial for creating fog rooms, which were added in a previous PR.