K-9 Mail v5.802

• Fixed a bug that was triggered when Push was enabled, but the server didn't support Push. If you've noticed high battery drain, this was probably it
• Added support for archive and spam actions in the Unified Inbox
• Fixed notification sounds/vibration. Sometimes notifications were audible when they shouldn't have been, sometimes the other way around
• Display the star of starred messages in yellow
• Don't show archive/spam action when no such folder is configured
• Fixed a crash when saving a draft message with modified signature text
• Fixed a crash when refreshing attachment previews