Log Message:
Changes 0.19:
* Exiv2 utility
  - Inverted the meaning of -u to deal with large numbers of unknown Nikon
    Makernote tags.
  - -b option now also suppresses Byte and SByte values.
* Exiv2 library fixes
  - Crash when reading PNG image.
  - Tag Exif.Image.ImageResources (0x8649 in IFD0) should have type BYTE (1).
  - Exception to print raw from Olympus SP-560UZ.
  - Nef Metadata edit with Digikam make impossible to open it with captureNX
    or ViewNX.
  - Broken image causes exiv2 to abort.
  - Problems converting SubSec tags to XMP.
  - Exif tag: TimeZoneOffset (0x882a) and other TIFF/EP tags missing.
* more...