fixed ball loading.
- now it is the object itself that chooses the shader.
also, we sidestep loading screen entirely if there are no textures to load
added loading screen
further improved loading screen.
added Jumbotron, along with a bunch of GLobj rotation methods
cleaned up stuff, made textures look a little cooler
added a couple more textures to stuff
can't get drunk without taking a couple shots, randy
added test env for stadium.