app-antivirus/clamav: new version 0.102.1.

app-antivirus/clamav: new version 0.102.1.

This new version fixes some major problems in the last one. The milter
isn't totally busted, a DoS was patched (CVE-2019-15961), we don't need
to patch the build system to detect libxml2, and fanotify should now
be found when it's there.

I've also tweaked the documentation location so that we don't wind up
with nested "html" directories, and stopped USE="-metadata-analysis-api"
from clobbering USE="clamsubmit" in the ebuild.

The mailing list reports that there are still intermittent test
failures and a ./configure bug, but this one might actually be usable.

Closes: https://bugs.gentoo.org/697686
Closes: https://bugs.gentoo.org/697688
Closes: https://bugs.gentoo.org/701094
Package-Manager: Portage-2.3.76, Repoman-2.3.16
Signed-off-by: Michael Orlitzky <mjo@gentoo.org>