fix(Http): Auxiliary methods like get, put, post, etc. do not set type restriction on data being sent.
fix(Http): Auxiliary methods like get, put, post, etc. do not set type restriction on data being sent.

Fixes #1051

hitesh97/angular.dart,hitesh97/angular.dart,hitesh97/angular.dart,giovannicandido/angular.dart,SibuStephen/angular.dart,ronlobo/angular.dart,ronlobo/angular.dart,giovannicandido/angular.dart,SibuStephen/angular.dart,hitesh97/angular.dart,rkirov/angular.dart,rkirov/angular.dart,SibuStephen/angular.dart,giovannicandido/angular.dart,winstonewert/angular.dart,trinarytree/angular.dart,winstonewert/angular.dart,trinarytree/angular.dart,rkirov/angular.dart,winstonewert/angular.dart,trinarytree/angular.dart,SibuStephen/angular.dart,trinarytree/angular.dart,rkirov/angular.dart,ronlobo/angular.dart,ronlobo/angular.dart,winstonewert/angular.dart