v2.2

Improvements

• Add address verification step in the "Change Email" flow
• Reduce logging output from sendalerts and sendreports management commands (#656)
• Add Ctrl+C handler in sendalerts and sendreports management commands
• Add notes in docs about configuring uWSGI via UWSGI_ env vars (#656)
• Implement login link expiration (login links will now expire in 1 hour)
• Add Gotify integration (#270)
• Add API support for reading/writing the subject and subject_fail fields (#659)
• Add "Disabled" priority for Pushover notifications (#663)

Bug Fixes

• Update hc.front.views.channels to handle empty strings in settings (#635)
• Add logic to handle ContentDecodingError exceptions