Refresh config details help URL
Add defaults for patch_method if not in overridden
Make UEFI instructions a little better
More UEFI work, tweaks for EL7
Add xfs and vfat to fstype pulldown
Update to pass hints for UEFI support
Prep EL7 support for UEFI boot
Permit root user creation on Ubuntu
Add EFI warning, bump default swap
Add VLAN tagging option for EL7 and F20+