0.2.1:
 * support moving a directory between devices
 * display paths with '/' separators on Windows (looks nicer when we're using
   escaped strings)
 * reduce memory usage of the 'ordering' field source
 * bug: preview could run while renaming
 * bug: always uses default configuration

0.2.0:
 * tabbed output section
 * warnings tab in output section
 * fields tab in output section
 * full in-application documentation
 * 'Recursive Files' file source
 * ask for confirmation when running if there are problems (warnings)
 * support XDG paths

0.1.2:
 * internationalisation support
 * Windows support
 * support unnamed groups in the regular expression field source
 * focus the input when adding a file or field source
 * save and restore window size and maximised state, and preview pane size
 * expand ~ in file paths
 * combine type dropdown with 'add' button for file and field sources
 * bug: follows symlinks when finding file to move
 * bug: destination path is always lower-case on Windows

0.1.1:
 * improve UI responsiveness while computing previewing
 * use the correct icon theme in more cases
 * don't allow closing the window while running
 * make the 'Run' button insensitive while running
 * headings for added file and field sources
 * update the preview after running
 * remove created directories when rolling back a failed rename
 * bug: run stops working after running with duplicate field names
 * bug: fails when moving a file to itself
 * bug: incorrect tab order for dynamic widgets
 * bug: install process misses SVG icon

0.1.0:
 * first release