Upgrade tests tools and lint migrations and scripts (part 2) (#9998)

* upgrade gulp-babel

* upgrade babel-eslint

* upgrade eslint-friendly-formatter

* start upgrading chai

* start to upgrade eslint

* restore skipped tests

* start to upgrqde monk

* fix linting and remove unused file

* fix mocha notifications, and common tests

* fix unit tests

* start to fix initrgration tests

* more integration tests fixes

* upgrade monk to latest version

* lint /scripts

* migrations: start moving to /archive unused migrations and run eslint with --fix

* lint migrations

* fix more integration tests

* fix test

migrations/archive/2013/20130208_user_customizations.js

@@ -0,0 +1,18 @@
+db.users.update(
+  {items: {$exists: 0}},
+  {$set: {items: {weapon: 0, armor: 0, head: 0, shield: 0 }}},
+  {multi: true}
+);
+
+db.users.find().forEach(function (user) {
+  let updates = {
+    // I'm not racist, these were just the defaults before ;)
+    'preferences.skin': 'white',
+    'preferences.hair': 'blond',
+
+    'items.head': user.items.armor,
+    'items.shield': user.items.armor,
+  };
+
+  db.users.update({_id: user._id}, {$set: updates});
+});