Add basic support for JSON form encoding
Add basic support for JSON form encoding

ginashi/web,riversea2015/web,redhotpenguin/web,epigos/web,zouchao2010/web,fredatgithub/web,tempbottle/web-1,yjp211/web,mapix/web,devfreesg/web,hoisie/web,hraban/web,williamzhang2013/web,mattn/web,no2key/web