Release version 0.4.4

skipping 0.4.{2,3} as these were used in the cordova branch independently
Fix non-#channels and single-symbol channels (#)
Clarify unread only setting
Merge pull request #508 from glowing-bear/fix-non-hash-channels

Fix non-#channels and single-symbol channels (#)
Close the correct tag
Fix display of buffers without a short_name
Merge pull request #509 from glowing-bear/fix-buffers-without-shortname

Fix display of buffers without a short_name
Merge branch 'master' into twemoji