Update experimental to CPAN version 0.013

  [DELTA]

0.013     2014-10-25 21:54:47+02:00 Europe/Amsterdam
          Rename lvalue_refs to refaliasing
Update Digest-SHA to CPAN version 5.93

  [DELTA]

5.93  Sun Oct 26 06:00:48 MST 2014
  - corrected alignment problem in SHA struct (src/sha.h)
    -- thanks to H. Merijn Brand and J. Hietaniemi for
      analysis and suggested patch
  - provided workaround in t/methods.t for unreliable -T test
    -- Some Perl 5.8's mistake text for binary