New grubcfg module, ported from Thus.
grubcfg: set swap_uuid variable
grubcfg: group variables
Initialize globalstorage before loading custom configuration
Merge pull request #107 from plfiorini/testmodule

Initialize globalstorage before loading custom configuration
dracut: Don't read settings

This module doesn't have settings yet so this call fails.
Merge pull request #99 from calamares/grubcfg

New grubcfg module, ported from Thus.