default value for sf-installer/target_badblocks_type was bogus
added script to check block devices for bad blocks
badblocks script did not work with default value
added a filesystem recipe based on isolation and xfs
Merge branch 'custom_debconf' of github.com:triddle/wheezy-netinstall-hdboot into custom_debconf
Merge branch 'custom_debconf'
improved the example ec2 preseed file