Unlink temporary xml file to avoid filling up space with junk files
/etc/ssl/cert.pem was obsoleted by mistake, remove it
Revert "/etc/ssl/cert.pem was obsoleted by mistake, remove it"

Since /usr/local/ssl/cert.pem is in place now, it can be obsoleted

This reverts commit bb788b8ceb3337b62401819378ec3070deb18966.
also take into account the "all" option in Unbound Network Interfaces when
setting 127.0.0.1 into resolv.conf.
Merge remote-tracking branch 'upstream/master'