Fix tests of 01-Ruby / 04-Hash-Symbols / Optional-03-Shopping-Cart
Update exercise README
Merge pull request #24 from lewagon/01-Ruby/04-Hash-Symbols/Optional-03-Shopping-Cart

Fix tests of 01-Ruby / 04-Hash-Symbols / Optional-03-Shopping-Cart
Cookbook refactored
Merge pull request #25 from lewagon/cookbook-refactored

Cookbook refactored
Rakefile to check file exists
Count lines to validate exercise
Rakefile testing CSS file size
All CSS exercises tested
Invert arity
Test bootstrap grid exercise
Need 3 html files
Empty 0/0 tests for JS exercises
New link to WWW Sql Designer
Recompartiment Chapter 3
Fixed the readme to go along the api changes
Sqlite instructions on ubuntu are clearer
Fixing 03-03-01-Migrations
Fixing 03-03-02-Models
Merge pull request #27 from lewagon/ar-exercices

Exercices ActiveRecord