Update Encode to CPAN version 2.49

  [DELTA]

  $Revision: 2.49 $ $Date: 2013/03/05 03:12:49 $
  ! Encode.xs
    Addressed: Encoding objects leak memory if decoding fails
    https://github.com/dankogai/p5-encode/issues/8
Bump File::Copy version as the contents have changed