Public code methods should have documentation

[JavierUrones]

Public methods in javascript should be documentated using jsdoc.

[srensamblador]

JSDoc reference here: http://usejsdoc.org/

To generate the HTML:

• Install jsdoc globally (or locally but then you need to provide the route to the bin inside node_modules) npm install -g jsdoc

• Generate HTML for the chosen .js jsdoc index.js

Resulting HTMLs will be stored in the folder out/