has_many :preferences, :class_name => "UserPreference"
has_many :changesets
+ has_many :client_applications
+ has_many :oauth_tokens, :class_name => "OauthToken", :order => "authorized_at desc", :include => [:client_application]
+
validates_presence_of :email, :display_name
validates_confirmation_of :email#, :message => ' addresses must match'
validates_confirmation_of :pass_crypt#, :message => ' must match the confirmation password'