[tracker] (5 commits) Non-fast-forward update to branch sam/test-fixes

[Sam Thursfield <sthursfield src gnome org>]

The branch 'sam/test-fixes' 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:

  ae96249... functional-tests: Fix LANG warnings in functional-17-ontolo
  aa0a59d... functional-tests: Don't ignore failures in ipc/ tests
  c389806... functional-tests: Report failures in tests/ipc/test-insert-

Commits added to the branch:

  b68cef0... Rework the tracker-sandbox utility (again) (*)
  fa77b62... functional-tests: Fix LANG warnings in functional-17-ontolo
  1e66800... functional-tests: Don't ignore failures in ipc/ tests
  92483a9... functional-tests: Report failures in tests/ipc/test-insert-
  3727567... functional-tests: IPC tests need GSETTINGS_SCHEMA_DIR set

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