Update Encode to CPAN version 2.67

  [DELTA]

$Revision: 2.67 $ $Date: 2014/12/04 20:13:00 $
! t/taint.t
  Now skips nonexistent methods like Encode::Detect->encode() should
  that be installed.  This resolves RT#100105.
  https://rt.cpan.org/Ticket/Display.html?id=100105