- Simplifies cron status message
- Implements newsletter change detection between scheduled queues
- Implements detection for subscribers who unsubscribed from list
- Implements detection for WP users who changed roles
- Updates scheduler worker logic
- Various fixes
- Refactors SendingQueue worker class
- Adds Maier router with a send() method + ability to specify sending method
- Updates tests
- Introduces 'stopping' and 'starting' cron states
- Improves cron control mechanism
Closes#276
- added checks to prevent adding to the queue useless items
- fixed issue with mta settings (duplicated "host" input / renamed duplicate to "domain" for MailGun)
- fixed namespace issue on cron daemon/supervisor
- fixed typo in migration preventing the newsletter_templates table to be created.
- partially fixed cron.jsx
