Update Encode to CPAN version 2.77

Update Encode to CPAN version 2.77

  [DELTA]

$Revision: 2.77 $ $Date: 2015/09/15 13:53:27 $
! Unicode/Unicode.xs Unicode/Unicode.pm
  Address RT#107043: If no BOM is found, the routine dies.
  When you decode from UTF-(16|32) without -BE or LE without BOM,
  Encode now assumes BE accordingly to RFC2781 and the Unicode
  Standard version 8.0
  https://rt.cpan.org/Public/Bug/Display.html?id=107043
! Makefile.PL encoding.t
  Mend pull/42
! Encode.xs Makefile.PL encoding.pm encoding.t
  Pulled: precompile 1252 table as that is now the Pod::Simple default
  https://github.com/dankogai/p5-encode/pull/42