profanity: Clean up package expression file.

No real changes in functionality, other than renaming libnotifySupport
to just notifySupport.

I've wrapped the lines to a maximum of 80 characters in width, so the
file looks less cluttered up. Which includes setting apart the attribute
for notifySupport and its respective dependencies from the main
dependencies.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>