Log Message:
Update to 2.1.5.  Signficant changes since 2.1.4:

    + Add support for color profiles
     (optional and requires lcms, see Notes in README).
    + Add ability to delete a folder and it's contents (with restrictions).
    - Add support for jpegs embedded in pentax and olympus raw files.
    - Add icons for image state, enabled with I keyboard shortcut.
    - For pan view calendar only show months that contain an image.
    * Escape filename characters "`$\ before passing them to the
      system shell when running an editor command.
    * Always use aligned memory access in EXIF parser, fixes crash
      with BUS error on sparc.