add gem "json" for rbx
add gem "json" for rbx

beni55/apiary-client,beni55/apiary-client,apiaryio/apiary-client,apiaryio/apiary-client,cvcnetwork/apiary-client,bireshwarWEBQ/apiary,jrep/apiary-client,bireshwarWEBQ/apiary,jrep/apiary-client,apiaryio/apiary-client,cvcnetwork/apiary-client