bugfix: transparent prominent colors

git-svn-id: http://notifications-widget.googlecode.com/svn/trunk@368 21922344-3934-ee51-d6e3-fd981ce84c01
bugfix: duplicated notifications

git-svn-id: http://notifications-widget.googlecode.com/svn/trunk@369 21922344-3934-ee51-d6e3-fd981ce84c01