click the select button to get rid of window

the linemodes still have to be implemented.  Done, but the dash styles have
  to be fine tuned.   Also, it would be nice to have the dashes be in
  different colors when the machine supports it.

make sure that the file buffer for the tmp file is big.

write a man page

make sure the action is taken when the button goes up and not when
it goes down
