message: Increased difficulity of the NoSQL Challenges to 3
  Added Hints for the challenges
diff: @@ -494,8 +494,8 @@ function createChallenges () {
  name: 'NoSql Command Injection',
  category: 'NoSQL Injections',
  description: 'Let the server sleep for some time. It has done more then enough for you.',
  - // TODO See if hint are required
  - difficulty: 2,
  + hint: addHint('Try changing out the id of the product review request to something more malicious.'),
  + difficulty: 3,
  solved: false
  }).success(function (challenge) {
  challenges.noSqlCommandChallenge = challenge
  @@ -503,8 +503,9 @@ function createChallenges () {
  models.Challenge.create({
  name: 'NoSql Injection',
  category: 'NoSQL Injections',
  - description: 'Change more than one comment for a product at a time.',
  - difficulty: 2,
  + description: 'Update more than one comment for a product at a time.',
  + hint: addHint('Take a closer look on how updates in MongoDB work.'),
  + difficulty: 3,
  solved: false
  }).success(function (challenge) {
  challenges.noSqlInjectionChallenge = challenge
  