Create empty rails 4 application with suspenders

* remove not needed things for the moment like aibrake, delayed_job, high_voltage
Add a gemset for the project
Add Devise and User model
Add doc foler with todo list
Install Rabl to customize json responses
Add list model with scaffold

* make the list controller respond to json
User has many lists
Cleanup spec
Bootstrap some data
Move the link for logout in the layout
Update doc
Install backbone on rails gem, and generate the project structure
Scaffold list model in backbone
Display the lists on the index
The index view render with loop on item view
Add a CRUD for lists
Rename list router in main router
Scafold the products model
Bootstrap the products and create a main rooter
Refactore lists routes