set of development tools as recommended by upstream.
Ports will continue to depend on devel/gettext for libintl. The
gettext module also provides an automatic build dependency on
devel/gettext-tools for msgfmt etc.
A few ports that require a library provided by gettext-tools get a
corresponding dependency.
Also update gettext to 0.19.5.1.
COMMENT and DESCR from FreeBSD. Bulk build testing by sthen@.
ok sthen@