Changed the ruby code that creates the dasdfmt command to use
variables for the request size (-r) and the "cylinders per
hashmark" value (-m)

Adapted the progress bar for formatting DASD to match what is
specified on the dasdfmt command.

Set the values of both -r and -m to the new default value of 10
that came in with s390-tools 1.24.1.
Added a comment to package/yast2-s390.changes.
Bumped the version in the spec file.
Merge pull request #17 from markkp/master

Changed the ruby code that creates the dasdfmt command to use