v8.3

This is a maintainence release specifically for Manjaro updates

• 85d478a Release 8.3 for Manjaro
• 46b0782 Merge pull request #237 from libcg/master
• 5106dd2 common.mk: don't use -Werror
• 25caad2 More Solus defaults. You can disable these in Budgie Settings if you dislike.
• 6dfd544 Deal with lightdm's weirdess by being GNOME. Vs Budgie:GNOME
• a92612e wm: Adapt to GSD 3.16 changes (closes issue #204)
• 8fe5fd9 Undo insanity - broke gnome-screenshot (-i)
• 3db55d5 Use executable, not commandline
• cf5d34c panel/applets: Do not trust GdkAppLaunchContext
• abfc761 data: Disable "md" style - to be removed entirely soon
• 8b67922 applets/budgie-menu: Disable score tracking (optional in future)
• 4c58f96 applets/tray: Lock to 24px as its just too problematic.
• 3dca370 applets/tray: Lock down the icon sizes
• 233d547 Fix handling of Super_L (overlay-key)
• 33e8eff Ensure popovers close with windows key
• 5955540 Switch to start-here-symbolic icon by default
• 945e706 wm: Add initial basic "always on top" menu item (no check)
• b821e1d wm: Fix tab timeout, ain't nobody fast enough for that.
• ea5e255 applets/notifications: Don't enable focus on close button
• 44611e3 Sync lots more translations
• 5837345 applets/show-desktop: Be visually consistent with launchers
• 5081185 Add lock button to session dialog (resolves issue #89)