* XFCE4/Hildon: Log to syslog, see also:
<https://github.com/postmarketOS/pmbootstrap/pull/762>
* Fix XFCE4 didn't start in qemu-amd64, because it required
libEGL.so.1, which is provided by mesa-egl. This is a dependency
of device-qemu-amd64-x11 now. (It worked for Hildon and Weston,
because they pull mesa-egl in with other packages.)
* Allow to specify a custom username in "pmbootstrap init"
* Build chroots have "pmos" instead of "user" as username now
* Installation user UID is 1000 now (as in all other Linux distributions)
* Adjust autologins
* postmarketos-base: enable wheel group for sudo, removed previous sudoers file
* Implement safe upgrade path:
We save the version of the work folder format now, in $WORK/version.
When this file does not exist, it defaults to 0.
In case it does not match the currently required version
(pmb.config.work_version), then ask the user if it should
automatically be upgraded.
