Use tags to do minor updates of GitLab
Logrotate daily, keeping 90 days of old logs

Also remove the 'delaycompress' option which is not needed because we
use 'copytruncate'.
Add 6.6-to-6.7.md update guide
Update the logrotate configuration in 6.7
 Merge branch 'patch_update_robustness' into 'master'

Patch Update Robustness
 Merge branch 'tighten_logrotate' into 'master'

Tighten Logrotate
Merge branch 'master' of github.com:gitlabhq/gitlabhq