Fix usage of cpanm on Travis

Ensure that minimal version of ExtUtils::MakeMaker for cpanm --installdeps
--with-configure is present. Without ExtUtils::MakeMaker in version 6.58,
MYMETA.json is not generated and so cpanm --with-configure cannot parse
needed install dependences.

Author: pali

.travis.yml

@@ -441,6 +441,7 @@ install:
       cpanm --quiet --notest --local-lib="$HOME/perl5" local::lib ;
       eval $(perl -I"$HOME/perl5/lib/perl5" -Mlocal::lib) ;
     fi
+  - perl '-MExtUtils::MakeMaker 6.58' -e '' || cpanm --quiet --notest ExtUtils::[email protected]
   - if [ -n "$DBI_VERSION" ]; then cpanm --quiet --notest DBI@$DBI_VERSION; fi
   - cpanm --quiet --notest --skip-satisfied DBI~1.608 Devel::CheckLib~1.12
   - cpanm --quiet --notest --skip-satisfied --installdeps --with-configure --with-develop --with-recommends --with-suggests .