It fell as quickly as it rose. The explosive new Facebook app, Breakup Notifier, was banned from the social networking site Wednesday morning. Only released early this week, Breakup Notifier allowed users to receive alerts the moment any of their friends changed their relationship statuses from &amp;#8220;in a relationship&amp;#8221; to &amp;#8220;single.&amp;#8221; You can blame the [...]