Make Model.all return an array rather than a relation for consistency. Use Model.scoped to get a relation

Fixes "Rails 3.0 doesn't fucking work"

Add Model.select/group/order/limit/joins/conditions/preload/eager_load class methods returning a lazy relation.

  Examples :

    posts = Post.select('id).order('name') # Returns a lazy relation
    posts.each {|p| puts p.id } # Fires "select id from posts order by name"

adv_attr_accessors in ActionMailer are not sent to the views, use the mailer object if you need to access the subject, recipients, from, etc.

  Example :

    posts = Post.scoped
    posts.size # Fires "select count(*) from  posts" and returns the count
    posts.each {|p| puts p.name } # Fires "select * from posts" and loads post objects