v4.7.0

Changes:

• Improved beacon scoring algorithms by filtering out bursty connections (https://github.com/activecm/rita/pull/773, https://github.com/activecm/rita/pull/774)
• Deployed the beaconing algorithm introduced in the IP beacons module in v4.6.0 to the Web beacons module (https://github.com/activecm/rita/pull/774)
• Deployed the beaconing algorithm introduced in the IP beacons module in v4.6.0 to the Proxy beacons module (#778)
• Added filter to drop proxied traffic which is entirely on the internal network (https://github.com/activecm/rita/pull/765)
• Added rita clean command to remove RITA datasets without MetaDB entries (https://github.com/activecm/rita/pull/763, #780)
• Removed FQDN Beacons module due to poor performance (https://github.com/activecm/rita/pull/771)
• Removed per-host DNS command and control analysis due to overflowing document sizes (https://github.com/activecm/rita/pull/762)
• Added better error reporting to the install script. Removed support for Ubuntu 18 and Debian 10. (#776)

Bug Fixes:

• Stop host aggregation phase if there aren't any local hosts (https://github.com/activecm/rita/pull/761)
• Check if a max analysis subdocument has already been inserted into the target host's dat collection before updating or inserting (https://github.com/activecm/rita/pull/764)
• Fix strobes from overflooding database documents when strobing is cumulative (https://github.com/activecm/rita/pull/767)
• Ensure bulk writes don't break 16MB limit (https://github.com/activecm/rita/pull/770)