ksconfig lacks btrfs, lvm options

Hi,

the disk partitions menu of ksconfig does not allow to choose btrfs partitions, although they are well supported by the ubuntu install process.

(It also lacks lvm support. This is more complicated, but should be supported. )

regards
Hadmut

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: system-config-kickstart 2.5.20-0ubuntu24
ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
Uname: Linux 4.2.0-7-generic x86_64
ApportVersion: 2.19-0ubuntu1
Architecture: amd64
CurrentDesktop: XFCE
Date: Mon Oct 5 13:53:58 2015
InstallationDate: Installed on 2015-08-28 (38 days ago)
InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150825)
PackageArchitecture: all
SourcePackage: system-config-kickstart
UpgradeStatus: No upgrade log present (probably fresh install)