Fix up URLParams rename compilation errors

This fixes up the last few compilation errors caused by the UrlParams =>
URLParams rename.

default.go

@@ -11,7 +11,7 @@ var DefaultMux *web.Mux
 func init() {
 	DefaultMux = web.New()
 
-	DefaultMux.Use(middleware.RequestId)
+	DefaultMux.Use(middleware.RequestID)
 	DefaultMux.Use(middleware.Logger)
 	DefaultMux.Use(middleware.Recoverer)
 	DefaultMux.Use(middleware.AutomaticOptions)

example/main.go

@@ -99,7 +99,7 @@ func NewGreet(w http.ResponseWriter, r *http.Request) {
 // GetUser finds a given user and her greets (GET "/user/:name")
 func GetUser(c web.C, w http.ResponseWriter, r *http.Request) {
 	io.WriteString(w, "Gritter\n======\n\n")
-	handle := c.UrlParams["name"]
+	handle := c.URLParams["name"]
 	user, ok := Users[handle]
 	if !ok {
 		http.Error(w, http.StatusText(404), 404)
@@ -119,7 +119,7 @@ func GetUser(c web.C, w http.ResponseWriter, r *http.Request) {
 // GetGreet finds a particular greet by ID (GET "/greet/\d+"). Does no bounds
 // checking, so will probably panic.
 func GetGreet(c web.C, w http.ResponseWriter, r *http.Request) {
-	id, err := strconv.Atoi(c.UrlParams["id"])
+	id, err := strconv.Atoi(c.URLParams["id"])
 	if err != nil {
 		http.Error(w, http.StatusText(404), 404)
 		return