Bump dep for security

Update version

2.0

- Change class structure so that it's easier to extend it to work in a different chat.

- Simplify DevOps through NPM script.

- chatControllerMap is now a global, singleton object, and it receives only one argument: ChatController.

- `ChatController` needs to be passed a View now.

- WhatsApp chat ID can be just part of the contact/group name.

- Overall refactor.

Merge pull request #9 from JSquadders/mvc

Primeiro grande upgrade