Add a Readme

Every project should have a Readme.
Merge pull request #1 from thomasklemm/develop

Add a Readme
* switch to coffeescript
* use mongodb
* remove snockets
* load books via ajax
* add TODOs
* enable adding of books to the database
* prepare for jsonp request to google books
* add local list-js
Merge branch 'feature/database' into develop
MongoDB
Facebook-URL
Removed alert
Facebook like