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

website/client/components/static/faq.vue

@@ -62,8 +62,8 @@
           wikiTechAssistanceEmail: `mailto:${TECH_ASSISTANCE_EMAIL}`,
         },
         // @TODO webFaqStillNeedHelp: {
-          // linkStart: '[',
-          // linkEnd: '](/groups/guild/5481ccf3-5d2d-48a9-a871-70a7380cee5a)',
+        // linkStart: '[',
+        // linkEnd: '](/groups/guild/5481ccf3-5d2d-48a9-a871-70a7380cee5a)',
         // },
         // "webFaqStillNeedHelp": "If you have a question that isn't on this list or on the [Wiki FAQ](http://habitica.wikia.com/wiki/FAQ), come ask in the <%= linkStart %>Habitica Help guild<%= linkEnd %>! We're happy to help."
       };