[dconf] (17 commits) Non-fast-forward update to branch wip/smcv/systemd-unit

[Daniel Playfair Cal <danielplayfaircal src gnome org>]

The branch 'wip/smcv/systemd-unit' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  fc46e15... service: Add a systemd unit for D-Bus activation

Commits added to the branch:

  7bcd1b2... tests: factor out abicheck from gsettings (*)
  b6ee1a1... client: add abicheck (*)
  f441731... build: Improve libdconf visible symbols (*)
  7526617... build: Remove libdconf-common-hidden (*)
  72fbd6f... include symbols needed by GNU BFD ld in map (*)
  6f7f010... Merge branch 'fix-symbols' into 'master' (*)
  d23b3fd... client: add symbol map (*)
  658af70... move dconf-gvdb-utils from service into common (*)
  6edda52... common: factor out dconf_gvdb_utils_changeset_from_table (*)
  5b24a93... common: factor out dconf_gvdb_utils_table_from_changeset (*)
  4f90c79... engine: seal the in_flight queue before sending it (*)
  5ed0724... engine: remove spurious local change notifications (*)
  6e19dec... Merge branch 'patch/engine-check' into 'master' (*)
  f660304... completion: Drop nonexistent lock and unlock commands from  (*)
  cd85cec... completion: Add missing commands to completion list (*)
  9f31030... Merge branch 'completion' into 'master' (*)
  2781a86... service: Add a systemd unit for D-Bus activation

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