Update to 6.98, catching up to what's included in lang/perl5 (and
making this package installable again).

Dist fixes:
* Removed redundant File::Spec check from Makefile.PL

Bug fixes:
* Resolve another regression related to not recursing into distdirs
* Work-around v5.10.1 for the MIN_PERL_VERSION v-string handling
* Make MIN_PERL_VERSION handle v-strings properly
* Resolved a regression in MM_Unix.pm
  (https://github.com/Perl-Toolchain-Gang/ExtUtils-MakeMaker/issues/96)
* Libraries are not transitive on Android

Test fixes:
* Make meta tests more robust to changes in CPAN::Meta

Not a leaf, but this update should fix a handful of depending
packages.

(schmonz)