Timezone pointing to Paris.
Fix CanCan ability.rb and make authorization effective to newspaper.
Begin the creation of a backend to link users to roles through a form.
Fix session route.
Add a Logout link.
Remove pretty useless routes.
Add params to the rolify route
Unusable and unworking page to add role. If you want to contribute...
Add authorizations for action show_by_cat
Add role in join table via form works. Delete and tests need to be fixed. Priority to make a validation to new signed in user by admin.
Working form to add and delete roles to users. Default roles at the registration done.
Merge branch 'master' into experimental

Conflicts:
	app/views/newspapers/index.html.erb
	config/routes.rb
Fix merge
Another try to Merge branch 'master' into experimental
Merge branch 'experimental'