Initial splash screen. We might want to make this fancier later, but this should work for now.
Add chat instructions.
Fix obscure double space.
Add fullscreen message.
Errors now use the same splash screen as the instructions (so you can never have both showing at the same time), and stop the frame simulation when an error happens. We should be able to take advantage of the latter behaviour when major lag happens, and just kill the simulation completely in that case.
Merge pull request #63 from crazy2be/splash

Splash