Integrate changes from Vladimir Mezentsev

[davazp]

I was sent some contributions to the email from this person with contributions to JSCL.

• https://github.com/vlad-km/klib
• https://github.com/vlad-km/moren
• https://github.com/vlad-km/jscl-chrome-extension

The repositories contain code related to DOM manipulation, a IDE and a Chrome extension.

I open this issue to discuss and keep track of the integration of the functionality.

Tasks

• [ ] Create module for websockets
• [ ] Create module for DOM
• [ ] Create repository for the chrome extension

(*) where module could be a contrib inside jscl source or an external repository, I am not sure about it yet.

[vlad-km]

I think that the module should be an external repository. There can be many such repositories from many contributors. Everyone user will choose the one that he likes.