Merge pull request #50 from WenhuaChang/master

fix some serial console issues
add missing parenthesis
Merge pull request #51 from yast/fix_syntax

add missing parenthesis
do not crash if there is no swap partition (bnc#867435)
release
Merge pull request #52 from yast/fix_fault_867435

Fix fault 867435
fix grub2-*-efi package not installed

fix grub2-*-efi package not installed by using it's name not provide
(bnc#867380)