Added `rake spec` task, defaulting to it from `rake`.
Added `rake spec` task, defaulting to it from `rake`.

elfotografo007/chargify_api_ares,wsmoak/chargify_api_ares,outstand/chargify_api_ares,chase439/chargify_api_ares,chargify/chargify_api_ares,carsonreinke/chargify_api_ares