Make debug output better and stop sending spaces to the fifo.

When using 'pterosaurdebug' the output can be ugly/garbled if you aren't using xterm. The first commit will change the behavior to use the $TERM environment variable.
In 'startVimbed', you send a space to the fifo. In Vim, this may be mapped to do just about anything. The only thing guaranteed to be safe (I hope anyways) to send is an escape character. The second commit fixes this.