User: use User.http.path

Use the new property introduced by a recent change in
loopback-datasource-juggler instead of building the URL
manually from pluralModelName.

lib/models/user.js

@@ -240,7 +240,7 @@ User.prototype.verify = function (options, fn) {
                        options.protocol
                        + '://'
                        + options.host
-                       + (User.sharedCtor.http.path || '/' + User.pluralModelName)
+                       + User.http.path
                        + User.confirm.http.path;