K-9 Mail v6.511

What's Changed

• Swiping between messages should now work more reliably (@cketti)
• Fixed message details layout when contact pictures are disabled (@cketti)
• Fixed disappearing toolbar buttons in the message view screen (@cketti)
• Fixed a couple of rare crashes (@cketti)
• Internal changes (@wmontwe, @cketti)
• Updated translations (many volunteers)

Full Changelog: 6.510...6.511