v7.3.4

Changelog

876e5ac Update CHANGELOG.md for v7.3.4
8e5263d Merge pull request #70 from nyaruka/better_stats
8425a18 Include failed archive counts in librato stats
906eeed Merge branch 'main' into better_stats
6e1a376 Add test for run that can't be archived
9f5f586 Rework stats reporting
6da1f89 Log version at startup
3fd667b Tidy up some logging