beego: support more router

//design model
	beego.Get(router, beego.FilterFunc)
	beego.Post(router, beego.FilterFunc)
	beego.Put(router, beego.FilterFunc)
	beego.Head(router, beego.FilterFunc)
	beego.Options(router, beego.FilterFunc)
	beego.Delete(router, beego.FilterFunc)
	beego.Handler(router, http.Handler)

//example

beego.Get("/user", func(ctx *context.Context) {
	ctx.Output.Body([]byte("Get userlist"))
})

beego.Post("/user", func(ctx *context.Context) {
	ctx.Output.Body([]byte("add userlist"))
})

beego.Delete("/user/:id", func(ctx *context.Context) {
	ctx.Output.Body([]byte([]byte(ctx.Input.Param(":id")))
})

import (
    "http"
    "github.com/gorilla/rpc"
    "github.com/gorilla/rpc/json"
)

func init() {
    s := rpc.NewServer()
    s.RegisterCodec(json.NewCodec(), "application/json")
    s.RegisterService(new(HelloService), "")
    beego.Handler("/rpc", s)
}

beego.go

@@ -121,6 +121,60 @@ func AutoPrefix(prefix string, c ControllerInterface) *App {
 	return BeeApp
 }
 
+// register router for Get method
+func Get(rootpath string, f FilterFunc) *App {
+	BeeApp.Get(rootpath, f)
+	return BeeApp
+}
+
+// register router for Post method
+func Post(rootpath string, f FilterFunc) *App {
+	BeeApp.Post(rootpath, f)
+	return BeeApp
+}
+
+// register router for Delete method
+func Delete(rootpath string, f FilterFunc) *App {
+	BeeApp.Delete(rootpath, f)
+	return BeeApp
+}
+
+// register router for Put method
+func Put(rootpath string, f FilterFunc) *App {
+	BeeApp.Put(rootpath, f)
+	return BeeApp
+}
+
+// register router for Head method
+func Head(rootpath string, f FilterFunc) *App {
+	BeeApp.Head(rootpath, f)
+	return BeeApp
+}
+
+// register router for Options method
+func Options(rootpath string, f FilterFunc) *App {
+	BeeApp.Options(rootpath, f)
+	return BeeApp
+}
+
+// register router for Patch method
+func Patch(rootpath string, f FilterFunc) *App {
+	BeeApp.Patch(rootpath, f)
+	return BeeApp
+}
+
+// register router for all method
+func Any(rootpath string, f FilterFunc) *App {
+	BeeApp.Any(rootpath, f)
+	return BeeApp
+}
+
+// register router for own Handler
+func Handler(rootpath string, h http.Handler) *App {
+	BeeApp.Handler(rootpath, h)
+	return BeeApp
+}
+
 // ErrorHandler registers http.HandlerFunc to each http err code string.
 // usage:
 // 	beego.ErrorHandler("404",NotFound)