set JSONRequestSerializer#createRequest content-type to 'application/json' to handle json POST request
set JSONRequestSerializer#createRequest content-type to 'application/json' to handle json POST request

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