First try and experiments with nodejs+ppw
Added express and sqlite support to deal with the service using nodejs, serving files
Added methods to the API, and it is already dealing with sessions
Added the full remote control version with the basic functionality
Starting works with websockets to the controllers
Added the basic features to the basic control...still to be applied the socket support
Changes applied to the vistual style of the server screen
Added socket features - WORKING with remote control via websocket
Applied rooms feature to present remotelly different talks with no interference - using websockets to controll the talk
Adjusts made to the toolbar...also added :active state to open it
Merge branch 'remote'

Added server features to load power polygon via nodejs.
Some of the new features:
- Added root page with the list of talks, login button, and option to present the talks remotelly;
- Added full remote control;
- Added basic remote control;
- Use of websockets to manipulate the presentation;
- Use of session and tokens to lock the presenter to the attendees;