added tick support (use a second argument in the 0.001 to 0.01 range)
flush output so we can see results for infinite looping programs
fixed popped output so they don't have to be cast later
some new befunge programs that worked out of the box!
fix to correct grid wrapping
fix for emiting 0 when popping, not just peeking the stack
nicity so we can manually inspect the state
take input from user

note that we only take the first character if we want a character