Upgrade dependency botocore to ==1.4.28
Upgrade dependency botocore to ==1.4.28

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