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

The app icon should be generic, but not the slideshow logo.

We don't need to show a Mint logo there and
it also looks better with a generic icon.

Use streamer for webcam face capture