new feature: initial support for icon packs. (not ready yet)

git-svn-id: http://notifications-widget.googlecode.com/svn/trunk@274 21922344-3934-ee51-d6e3-fd981ce84c01
new feature: completed support for icon packs.

git-svn-id: http://notifications-widget.googlecode.com/svn/trunk@275 21922344-3934-ee51-d6e3-fd981ce84c01