- follow up to driver data migration into new XML data structure
  + implement KIWIProfileFile class to represent data in
    the .profile file. This class allows us to gradually
    move data that is processed in the XML changeset and ends
    up in .profile without duplicating code in other places
- remove attempt to write kiwi_luks to the .profile file
  + kiwi_luks is not used, no longer needed
- add diffutils as build requires
  + diff needed by new unit tests
- unit tests for new code
- fixed addBootEFILive function to work for 32bit ISO's
  + the boot path was hardcoded to boot/x86_64. With this
    patch the path to the bootloader files is searched