NewTabbed: fixes a (reintroduced) bug and some code formatting
NewTabbed: fixes a (reintroduced) bug and some code formatting

- The InvisibleMaybe patch reintroduced the rectangle bug.
- Some code formatting
- Corrected usage information

darcs-hash:20070927083551-32816-ffd0296a16a65b4784a59c31cbd414df60722ee7

kmels/xmonad-launcher,kmels/xmonad-launcher