Log Message:
kfilemetadata5: update to 5.61.0

5.61.0
  Get mobipocket extractor up-to-date, but keep disabled
5.60.0
  Fix extracting of some properties to match what was written
  Use debugging category in taglib extractor/writer
  Format photo exposure bias value
  fix property name
  Remove photo prefix from every exif property name
  Rename ImageMake and ImageModel properties
  [UserMetaData] Add method to query which attributes are set
  Format focal length as milli meter
  Format photo exposure time as rational when applicable
  Enable usermetadatawritertest for all UNIXes, not only Linux
  Format the aperture values as F numbers
5.59.0
  Show 3 significant figures when displaying doubles
5.58.0
  [TagLibExtractor] Fix crash on invalid Speex files
  Fix exivextractor crash with malformed files
  Declare properties as meta type
  Change properties attributes for consistency
  Handle variant list in formatting functions
  Fix for Windows' LARGE_INTEGER type
  Fix (compilation) errors for Windows UserMetaData implementation
  Add missing mimetype to taglib writer
  [UserMetaData] Handle changes in attribute data size correctly
  [UserMetaData] Untangle Windows, Linux/BSD/Mac and stub code