Merge pull request #83 from aschnell/master

- disable timeline of snapshots for root fs (requested by PM)
Merge pull request #84 from aschnell/master

- enable btrfs quota if snapshots are enabled (prototype for fate#312751)
Merge pull request #85 from aschnell/master

- added bnc number (of new bug)
Fix grub2 architecture name for PowerPC

Fix grub2 architecture name typo power-ieee1275 -> powerpc-ieee1275

Signed-off-by: Dinar Valeev <dvaleev@suse.com>
Merge pull request #86 from k0da/master

Fix grub2 architecture name for PowerPC