[gnome-build-meta/tpollard/test] (17 commits) ...WIP Add initial Raspi 3B+ target

[Tom Pollard <tpollard src gnome org>]

Summary of changes:

  95aa81c... core-deps/glibmm-2.4.bst et al.: Switch to Meson (*)
  b08e47d... core-deps/tepl.bst: switch to meson (*)
  8fe16f7... core-deps/samba.bst: move /var/run to /run (*)
  fe74276... vm/repo.bst: disable fsync when committing to ostree (*)
  c9fb67a... plugins/collect_initial_scripts.py: remove check for source (*)
  d4769ab... core-deps/polkit.bst: add initial-script for setuid permiss (*)
  b7bae8b... vm/plymouth-gnome-theme.bst: use an overlap-whitelist rathe (*)
  8cd31e4... plugins/collect_initial_scripts.py: mark as strict rebuild (*)
  21581c8... core-deps/spice-protocol: bump to version 0.14 (*)
  2b2ca3f... vm: add spice-vdagent (*)
  a2fdde5... Move libcanberra from sdk to core-deps (*)
  472e97b... core-deps/spice-gtk.bst: update to 0.38 (*)
  f506296... elements/core-deps/gnome-online-miners.bst: Disable windows (*)
  3df6dac... Remove libzapojit (*)
  ad11df3... elements/core-deps/gmime3.bst: Build vala bindings (*)
  36bba42... Add Geary (*)
  e1bfc5f... WIP Add initial Raspi 3B+ target

(*) This commit already existed in another branch; no separate mail sent