fixed grub install verification
dont try to get swap uuid while writing grub default unless swap exists
Merge branch 'testing' of https://github.com/Antergos/Cnchi into testing
added missing import in used_space.py
fix for used space detection of FAT partitions
check for kernel images in /boot and remove so alpm doesn't complain
Merge pull request #104 from lots0logs/testing

two error corrections, other minor changes