Upgrade to 2.8.0:

• New indexer 'response_time'
• Support for MaxMind DB (GeoIP2)
• Update 'pcap_layers' with fixes for 'scan-build' warnings
• Fix port in debug output of DNS message

Changes made in addition to the PR supplied patch:

• The port had USES=shebangfix but none of the SHEBANG_ variables were set; replace the cron_upload-prep.pl patch with a working shebangfix setup and then use REINPLACE_CMD to adjust the conf path in upload-prep.pl
• While we're here use REINPLACE_CMD to obey PREFIX in other files

PR: 235711
Submitted by: Leo Vandewoestijne (maintainer)
Reviewed by: ler (mentor)
Approved by: ler (mentor)
Differential Revision: https://reviews.freebsd.org/D19187