- added support for zfs filesystem
  * still problems with grub2-mkconfig, can't find canonical path
- fixed raw disk size calculation for split images
  the boot partition size was not taken into account
- fixed evaluation of oem-ataraid-scan parameter
- fixed 5.7 to 5.8 xsl stylesheet
- improved error output of failed schema validation
  * also check if the converted file can be created or not
- fixed getSingleInstSourceSatSolvable()
  * instead of rely on the suffix of a file it's better to
    actually check if it's compressed or non compressed data
    due to redirections and symlinks it might happen that a
    file name e.g 'packages' is resolved into 'packages.en.gz'
    kiwi downloaded the file and failed to check that it's
    a compressed file (bnc #822247)