Commit to stable UI

Desktop-installer has been stable for some time now, so it's time to commit to a stable UI for a while. No major UI changes until v2.0.

This release contains a few minor fixes and enhancements since 0.8.3.

UI improvements and a few fixes

Several UI improvements
A few bug fixes
Improve documentation

Numerous improvements and a few fixes

Numerous basic improvements to nascent NetBSD support
Add popup notifications and expanded notifications to battery-shutdown monitor script
Run battery-shutdown from cron rather than as a daemon
Add option to install freebsd-update-notify (popup notification for available updates)

Improved support for NetBSD

Vastly improved NetBSD support, also utilizing many improvements to auto-admin scripts

Replace SLiM with SDDM, streamline installation

Replace SLiM login manager (unmaintained for 10 years) with SDDM
SDDM also automatically detects multiple desktop environments (DEs)
Add SDDM option for Gnome, LXDE, LXQT
Other minor enhancements to streamline package install sequence

Minor enhancements

Remove bsdstats support due to maintenance lapses
xfce: evince -> xreader to reduce footprint
Add auto-mount -du to rc.suspend
Add mmcsd* to devfs rules

Webcam support, a few minor enhancements

Add support for configuring webcams
A few other minor improvements

Minor bug fixes and enhancements

Update gnome package name
Drop warning about Lumina screen resize (mostly fixed in latest FreeBSD port)
Update man page

Refactor, minor enhancements

Install src tree if not already present
Remove SUID on cdrecord
Factor out CUPS and devfs updates to auto-admin
Add check for Hyper-V

Add custom desktop option

Add "custom" option for configuring DEs or WMs not explicitly listed in the menu