0.19.3 - two small fixes, add PUT method, raise if no app_module
0.19.3 - two small fixes, add PUT method, raise if no app_module

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