Merge branch 'release/0.40'
Merge branch 'release/0.41'
Merge branch 'release/0.42'
Merge branch 'release/0.43'
Merge branch 'release/0.44'
Merge branch 'release/0.45'
Merge branch 'release/0.46'
Merge branch 'release/0.47'
Merge branch 'release/0.48'
Merge branch 'release/0.49'
Merge branch 'release/0.50'
Merge branch 'release/0.51'
Merge branch 'release/0.52'
Merge branch 'release/0.53'
Merge branch 'release/0.54'
Merge branch 'release/0.55'
Merge branch 'release/0.56'
Merge branch 'release/0.57'
Remove the archname lib path from PERL5LIB.

As long as the non-archname part is in PERL5LIB, the archname part
would be injected by perl itself into @INC. Therefore it is
much easier to fix GH #254 by removing archname path from PERL5LIB
then try to re-exec itself.

See also GH #263 and GH #261.
rebuild