This avoids duplication and eases the maintenance of the list.

Additional US layout and toggle hotkey for choosed non-latin layouts in target system

Consistent with Mint and Calamares.

Attempt to eject the live medium on reboot

parted is now returning partition paths in unicode.

Turn that into an str before making use of it.

In Stetch, the timezone wasn't set properly and was overwitten with
Europe/London.

Linking /etc/localtime instead of copying content into it fixes it.

Merge branch 'rsync_copy_files' of git://github.com/kernc/live-installer into kernc-rsync_copy_files

Disable the night overlay in timezones for now, it causes random segfaults.

https://bugs.launchpad.net/linuxmint/+bug/1436586