[tracker-miners] (6 commits) Non-fast-forward update to branch sam/lto

[Sam Thursfield <sthursfield src gnome org>]

The branch 'sam/lto' 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:

  0df4255... ci: Enable link-time optimization

Commits added to the branch:

  209b3ec... tracker-extract-raw.c: Fix compile warning (*)
  2148096... Replace TrackerDomainOntology class with a simpler function (*)
  323aa7e... Merge branch 'sam/raw-warning-fix' into 'master' (*)
  ef6261a... tracker-extract: Use normal logging when in standalone mode (*)
  846c3e1... Merge branch 'sam/fix-domainontology-gtype-conflict' into ' (*)
  d4a2dd5... ci: Enable link-time optimization

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