Closes sightmachine/shannon#386
Merge pull request #886 from brooksryba/develop

Closes sightmachine/shannon#386
Merge pull request #887 from ahomatthew/develop

Fix arrow being covered by scrollbar
Rebuild cache after backfilling tolerances
Merge pull request #888 from demaagdk/develop

Rebuild cache after backfilling tolerances
Frame.delete() should probably delete instead of save
Merge pull request #889 from demaagdk/develop

Frame.delete() should probably delete instead of save
Added frame update and delete subscriptions