- Bump version: 9.19.7 → 9.19.8

- Update libyui-ncurses-pkg10 to libyui-ncurses-pkg11
In Tumbleweed there is no longer the libyui-ncurses-pkg10 its been
superseded by libyui-ncurses-pkg11.
This fixes the test-image-qcow-openstack integration test

- Reference commit for SUSE maintenance
This commit adds a reference to Issue #1301 and the report in bugzilla
bsc#1159538. The issue was fixed in commit 7d96d19c

- Fix grub2 configuration for shim fallback setup
If shim fallback setup is enabled the grub.cfg is copied to the EFI
partition. This commit makes sure that the grub.cfg is copied to the EFI
partition according to the efi mount point.
Fixes bsc#1159235

- Ensure no swap volume is added on btrfs
When the selected filesystem is btrfs the volume manager is not LVM.
In that case the swap partition is not volume, it is a completely
independent partition. So that we cannot add and additional volume
for swap when swap is specified in the description file.
This patch fixes #1301 and fulfills #1297

- Fixed installation chapter in the documentation
The chapter still outlines multipython support but we
dropped support for python2 some time ago