Alert every time

The current notification design will only alert for the first notification, subsequent will only be displayed. This is bad because we combine all messages from a certain type (private, group, forum, blog) into one notification. For example, if there is an active notification for a group message in group A, there won't be any alerts for new messsages in any other group. You can easily miss messages this way.

Signed-off-by: goapunk noobie@goapunks.net