Dragthing 5.9.12

DragThing is the original dock designed to tidy up your Macintosh desktop. It puts all your documents, folders, and applications just a single click
away. Highly flexible, it allows multiple docks, each customised to suit your exact needs.
Merge pull request #1183 from Neireau/dragthing

Dragthing 5.9.12
Merge remote-tracking branch 'phinze/homebrew-cask/master'