Update to rebar 2.5.1
Update to rebar 2.5.1

choptastic/nitrogen,joaohf/nitrogen,stuart-thackray/nitrogen,joaohf/nitrogen,kevinmontuori/nitrogen,nitrogen/nitrogen,nitrogen/nitrogen,stuart-thackray/nitrogen,kevinmontuori/nitrogen,kevinmontuori/nitrogen,choptastic/nitrogen,nitrogen/nitrogen,stuart-thackray/nitrogen,joaohf/nitrogen,choptastic/nitrogen