fix(login): use relative url for google login in login page

views/login.html

@@ -57,7 +57,7 @@ <h3>CouchDB login</h3>
     var google = document.getElementById('google-login-link');
     if(google) {
         google.onclick = function() {
-            var url = '/auth/login/google';
+            var url = 'login/google';
             doLogin(url);
         };
     }