Log message:
mail: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

The following distfiles were unfetchable (possibly fetched
conditionally?):

./mail/qmail/distinfo netqmail-1.05-TAI-leapsecs.patch

Log message:
mail: Remove SHA1 hashes for distfiles

Log message:
Add SHA512 digests for distfiles for mail category

Problems found locating distfiles:
	Package mutt: missing distfile patch-1.5.24.rr.compressed.gz
	Package p5-Email-Valid: missing distfile Email-Valid-1.198.tar.gz
	Package pine: missing distfile fancy.patch.gz
	Package postgrey: missing distfile targrey-0.31-postgrey-1.34.patch
	Package qmail: missing distfile badrcptto.patch
	Package qmail: missing distfile outgoingip.patch
	Package qmail: missing distfile qmail-1.03-realrcptto-2006.12.10.patch
	Package qmail: missing distfile qmail-smtpd-viruscan-1.3.patch
	Package thunderbird24: missing distfile enigmail-1.7.2.tar.gz
	Package thunderbird31: missing distfile enigmail-1.7.2.tar.gz

Otherwise, existing SHA1 digests verified and found to be the same on
the machine holding the existing distfiles (morden).  All existing
SHA1 digests retained for now as an audit trail.

Log message:
Remove pkgviews: don't set PKG_INSTALLATION_TYPES in Makefiles.

Log message:
Drop PKG_DESTDIR_SUPPORT setting, "user-destdir" is default these days.

Log message:
Mechanical changes to add DESTDIR support to packages that install
their files via a custom do-install target.

Log message:
Point MAINTAINER to pkgsrc-users@NetBSD.org in the case where no
developer is officially maintaining the package.

The rationale for changing this from "tech-pkg" to \ 
"pkgsrc-users" is
that it implies that any user can try to maintain the package (by
submitting patches to the mailing list).  Since the folks most likely
to care about the package are the folks that want to use it or are
already using it, this would leverage the energy of users who aren't
developers.

Log message:
Add RMD160 digests.

Log message:
Rename ALL_TARGET to BUILD_TARGET for consistency with other *_TARGETs.
Suggested by Roland Illig, ok'd by various.

Log message:
Enable pkgviews installation.