requestSerializer fix and expected failure fix
requestSerializer fix and expected failure fix

robert1982/Swift-Http,ceosilvajr/SwiftHTTP,raheelahmad/SwiftHTTP,tanimislam/SwiftHTTP,ohad7/SwiftHTTP,tanimislam/SwiftHTTP,daltoniam/SwiftHTTP,msdgwzhy6/SwiftHTTP,raheelahmad/SwiftHTTP,upf/SwiftHTTP,ohad7/SwiftHTTP,alex-learn/SwiftHTTP,ceosilvajr/SwiftHTTP,yyMlv/SwiftHTTP,mtdtao/SwiftHTTP,cwoloszynski/SwiftHTTP,yinchuandong/SwiftHTTP,jhinsel/SwiftHTTP,yyMlv/SwiftHTTP,daltoniam/SwiftHTTP,ChinaPicture/SwiftHTTP,jhinsel/SwiftHTTP,upf/SwiftHTTP,iThanh/SwiftHTTP,mtdtao/SwiftHTTP,robert1982/Swift-Http,modulexcite/SwiftHTTP,raheelahmad/SwiftHTTP,alex-learn/SwiftHTTP,krin-san/SwiftHTTP,msdgwzhy6/SwiftHTTP,krin-san/SwiftHTTP,ChinaPicture/SwiftHTTP,sunfei/SwiftHTTP,yinchuandong/SwiftHTTP,ceosilvajr/SwiftHTTP,robert1982/Swift-Http,sunfei/SwiftHTTP,iThanh/SwiftHTTP,mtdtao/SwiftHTTP,yyMlv/SwiftHTTP,xiexinze/SwiftHTTP,cwoloszynski/SwiftHTTP,sunfei/SwiftHTTP,tanimislam/SwiftHTTP,modulexcite/SwiftHTTP,ChinaPicture/SwiftHTTP,krin-san/SwiftHTTP,modulexcite/SwiftHTTP,xiexinze/SwiftHTTP,msdgwzhy6/SwiftHTTP,ohad7/SwiftHTTP