add Ruby 2.2 to the CI tests
add Ruby 2.2 to the CI tests

frbl/active_interaction,JasOXIII/active_interaction,orgsync/active_interaction,antoinefinkelstein/active_interaction,AaronLasseigne/active_interaction,antoinefinkelstein/active_interaction,JasOXIII/active_interaction,orgsync/active_interaction,AaronLasseigne/active_interaction,frbl/active_interaction