Tabbed: added more configuration options
Tabbed: added more configuration options

It is now possible to configure active and inactive border colors, and
active and inactive text colors (i.e. tabs are now very similar to Ion3
tabs: former Ion users may appreciate).

darcs-hash:20070706130845-32816-5fb790432b5e013ff546304448ae025c0ebf88b8

kmels/xmonad-launcher,kmels/xmonad-launcher