Echo JS 0.11.0

Some useful resources :

- Principles of Writing Consistent, Idiomatic JavaScript : https://github.com/rwaldron/idiomatic.js

- Google JavaScript Style Guide : http://google-styleguide.googlecode.com/svn/trunk/javascriptguide.xml

- Meteor Style Guide : https://github.com/meteor/meteor/wiki/Meteor-Style-Guide