add 3.0.11 and 3.0.12 to supported versions
add 3.0.11 and 3.0.12 to supported versions

nick-desteffen/airbrake,CarlosCD/airbrake,airbrake/airbrake,nick-desteffen/airbrake,airbrake/airbrake,CarlosCD/airbrake,Shopify/airbrake,stevecrozz/hydraulic_brake