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

test/api/v3/integration/groups/POST-groups_id_removeMember.test.js

@@ -184,7 +184,7 @@ describe('POST /groups/:groupId/removeMember/:memberId', () => {
 
       let invitedUserWithoutInvite = await partyInvitedUser.get('/user');
 
-      expect(invitedUserWithoutInvite.invitations.parties[0]).to.be.empty;
+      expect(invitedUserWithoutInvite.invitations.parties[0]).to.be.undefined;
     });
 
     it('removes new messages from a member who is removed', async () => {
@@ -203,7 +203,7 @@ describe('POST /groups/:groupId/removeMember/:memberId', () => {
       expect(removedMember.notifications.find(n => {
         return n.type === 'NEW_CHAT_MESSAGE' && n.data.group.id === party._id;
       })).to.not.exist;
-      expect(removedMember.newMessages[party._id]).to.be.empty;
+      expect(removedMember.newMessages[party._id]).to.be.undefined;
     });
 
     it('removes user from quest when removing user from party after quest starts', async () => {