make async tests travis compatible
make async tests travis compatible

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