Merge branch 'blead' of ssh://perl5.git.perl.org/gitroot/perl into blead

* 'blead' of ssh://perl5.git.perl.org/gitroot/perl:
  move version details to version::Internals and other clean up
  document version::is_strict/is_lax
  Document usage of version regexps
  Export and document is_lax and is_strict functions
  note that delete/exists ARRAY_ELEM should be avoided
  Don't try to calculate a time over the conservative failure boundary.

diff --cc MANIFEST
Simple merge