Log Message:
Update to 3.8.1:

3.8.1 (2014-07-17)
------------------

- The representation of CaselessDicts in 3.8 changed the name attribute of
  Components and therefore broke the external API. This has been fixed.
  [untitaker]

3.8 (2014-07-17)
----------------

- Allow dots in property names (Needed for vCard compatibility). Refs #143.
  [untitaker]

- Change class representation for CaselessDict objects to always include the
  class name or the class' name attribute, if available. Also show
  subcomponents for Component objects.
  [thet]

- Don't use data_encode for CaselessDict class representation but use dict's
  __repr__ method.
  [t-8ch]

- Handle parameters with multiple values, which is needed for vCard 3.0.
  Refs #142.
  [t-8ch]