Add root true to remote methods

lib/models/model.js

@@ -107,6 +107,8 @@ Model.setup = function () {
     {path: '/:id'}
   ];
   
+  ModelCtor.sharedCtor.returns = {root: true};
+
   return ModelCtor;
 }
 

lib/models/user.js

@@ -264,7 +264,7 @@ User.setup = function () {
       accepts: [
         {arg: 'credentials', type: 'object', required: true, http: {source: 'body'}}
       ],
-      returns: {arg: 'session', type: 'object'},
+      returns: {arg: 'session', type: 'object', root: true},
       http: {verb: 'post'}
     }
   );

test/model.test.js

@@ -275,7 +275,7 @@ describe('Model', function() {
             {arg: 'username', type: 'string', required: true},
             {arg: 'password', type: 'string', required: true}
           ],
-          returns: {arg: 'sessionId', type: 'any'},
+          returns: {arg: 'sessionId', type: 'any', root: true},
           http: {path: '/sign-in', verb: 'get'}
         }
       );
@@ -292,7 +292,7 @@ describe('Model', function() {
           .expect(200)
           .end(function(err, res){
             if(err) return done(err);
-            assert(res.body.$data === 123);
+            assert.equal(res.body, 123);
             done();
           });
       });

test/user.test.js

@@ -132,7 +132,7 @@ describe('User', function(){
       function logout(err, sid) {
         request(app)
           .post('/users/logout') 
-          .expect(200)
+          .expect(204)
           .send({sid: sid})
           .end(verify(sid, done));
       }