validates :display_name, :if => proc { |u| u.display_name_changed? },
:invalid_chars => true,
:invalid_url_chars => true,
- :leading_whitespace => true,
- :trailing_whitespace => true
+ :whitespace => { :leading => false, :trailing => false }
validates :email, :presence => true, :confirmation => true, :invalid_chars => true
validates :email, :if => proc { |u| u.email_changed? },
:uniqueness => { :case_sensitive => false }