Replace deprecated expiresInMinutes with expiresIn

``` jsonwebtoken: expiresInMinutes and expiresInSeconds is deprecated. (user-routes.js:16:14) Use "expiresIn" expressed in seconds. ```

Author: fhemberger

user-routes.js

@@ -13,7 +13,7 @@ var users = [{
 }];
 
 function createToken(user) {
- return jwt.sign(_.omit(user, 'password'), config.secret, { expiresInMinutes: 60*5 });
+ return jwt.sign(_.omit(user, 'password'), config.secret, { expiresIn: 60*60*5 });
 }
 
 function getUserScheme(req) {
@@ -85,4 +85,4 @@ app.post('/sessions/create', function(req, res) {
  res.status(201).send({
  id_token: createToken(user)
  });
-});
+});