Another large changelog

- Removed Services
- Added deployment commands
- Tons of small bug fixes
- Maybe the changelog isn't that large

Merge branch 'release/v0.6.0'
added unicode csv reader
Issue cards will now render if issue does not have a cover image (or a thumbnail) set
changed future_date to days
Issue importer gracefully passes if an Issue cover image is not set
Merge branch 'hotfix/scheduler' into develop