Finished first cut of the User model
on va commencer à rentrer la logique de factory dans le test du model user
Clean some bullshits
Return in green state for User spec
Some refactor in tests for FactoryGirl
Remove useless specs files
ajout de shoulda-matcher au gemfile
 test presence+format+uniqueness on email with shoulda-matcher
Finished with shoulda-matcher
Finished with shoulda-matcher and user model
Merge branch 'modeling-users'
merged bracnhes + using shoulda-master for 'validate' test + working user model