Fixes #676 - only b64 encode is there is a body to encode
Fixes #676 - only b64 encode is there is a body to encode

longzhi/Zappa,pjz/Zappa,scoates/Zappa,mathom/Zappa,scoates/Zappa,pjz/Zappa,longzhi/Zappa,Miserlou/Zappa,anush0247/Zappa,anush0247/Zappa,michi88/Zappa,mathom/Zappa,michi88/Zappa,Miserlou/Zappa