Add CONFIG_BTRFS_FS
Add CONFIG_DM_THIN_PROVISIONING for devicemapper backend
Add "version" file to the root of the iso, too
Merge pull request #204 from tianon/btrfs

Add CONFIG_BTRFS_FS
Merge pull request #205 from tianon/devicemapper

Add CONFIG_DM_THIN_PROVISIONING for devicemapper backend
Merge pull request #206 from tianon/iso-version

Add "version" file to the root of the iso, too