[Fluxus] new commits

[evan.raskob [lists]]

Hi guys,

I added a much-needed function to clear the screen!!!
It's bound to CTRL+q

It also clears the history in the Repl.  The code is a bit mucky in  
there, but hopefully it doesn't break anything.

Now you can get rid of those error messages from the screen when  
you're livecoding! ;)

Cheers
Evan