Begin SQLCipher migration. First stage: all messages and temporary message cache
Fixed: When returning from idle, a conversation would be missing a set of messages
Fixed: When receiving a new message, the preview pane on the left would not update
Fixed: When sending a message the left pane status would not show 'sent' status
Fixed: Error when attempting to send to contact not synced from mobile
Update localization strings
Dev: Ensure set of Linux dev dependencies is complete in Contributing.md