Bumping notifier version to 2.0.9
Bumping notifier version to 2.0.9

stevecrozz/hydraulic_brake,thoughtbot/airbrake,kakra/hoptoad_notifier,airbrake/airbrake,benjaminoakes/airbrake,airbrake/airbrake,nick-desteffen/airbrake,nick-desteffen/airbrake,Shopify/airbrake,square/hoptoad_notifier,CarlosCD/airbrake,CarlosCD/airbrake,thoughtbot/hoptoad_notifier