use ext3 consistently for raid as for partitions
only autoyast2-installation requires yast2-slp, remove duplicated require yast2-slp
fix bug in general raid handling
changelog entry
fix bug handling more than two disks without explicit device name in partitioning section of xml description
changelog entry
version 3.1.13
changes after review
Merge pull request #29 from thomas-fehr/fix_autoyast_raid

Fix autoyast raid