[tracker] (48 commits) Non-fast-forward update to branch wip/carlosg/split-dataobject-informationelement

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/split-dataobject-informationelement' 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:

  0ab802d... libtracker-data: Fix retrieval of old datetime values for u
  fa80354... tests: Add tests for insertion of dates with UTC offsets
  57869eb... libtracker-direct: Fix notification of create events
  8229255... libtracker-data: Avoid clearing an already empty FTS row
  4409408... tests: Add test for property path queries on non-existent g
  123cbe3... libtracker-data: Handle property path subqueries on unknown
  5a04846... trackertestutils: Make await_update handle for InformationE
  19b175e... trackertestutils: Prepare for DataObject/InformationElement
  6ba6546... libtracker-sparql: Don't skip TrackerResources by URI

Commits added to the branch:

  ca1a0f3... Add TRACKER_DEBUG environment variable, use for SQL debug (*)
  2ba5b92... libtracker-common: Remove obsolete SCHED_IDLE enum (*)
  c3a4921... Add ONTOLOGY_CHANGES debug flag and hide index creation log (*)
  5aac111... Remove TRACKER_VERBOSITY and tracker-log module (*)
  a3682ae... Use structured logging (*)
  947719f... HACKING.md: Document the available debug options (*)
  7f35178... Update README for 3.0 (*)
  3d541fb... Update ontology URLs for 3.0 (*)
  41371de... Merge branch 'sam/README' into 'master' (*)
  c3916ec... Merge branch 'sam/ontology-urls' into 'master' (*)
  814db72... Merge branch 'sam/debug' into 'master' (*)
  77662ea... Update Ukrainian translation (*)
  ae05280... docs: Remove trailing whitespace in the faq page (*)
  68ea9bf... docs: Fix some links in the faq page (*)
  f5297e8... Merge branch 'wip/jfelder/doc-faqs-link' into 'master' (*)
  a6013fe... libtracker-data: Fix lifetime of blank node labels (*)
  d8e8903... libtracker-data: Simplify tracker_data_update_statement() (*)
  4ab9041... libtracker-data: Fix GValue usage (*)
  bfcdc16... libtracker-data: Drop needless optimization (*)
  d5382f1... libtracker-data: Drop needless code (*)
  d37fc03... libtracker-data: Streamline deletion of all values in a mul (*)
  dda1142... libtracker-data: Pass object bytes further down updates (*)
  6501a97... libtracker-data: Find out URI-ness through property in onto (*)
  c6b42fa... tracker: Allow in-memory endpoints through the CLI command (*)
  a015752... tracker: Add missing newline in CLI output (*)
  2d844ec... Merge branch 'wip/carlosg/blank-node-label-lifetime' into ' (*)
  6a6c0f9... libtracker-common: Fix lookup directory for stop words (*)
  60006ab... libtracker-data: Refactor insert/delete/commit/rollback cal (*)
  05e8502... build: Honour DESTDIR when creating subcommand links (*)
  a683836... Merge branch 'sam/destdir' into 'master' (*)
  61221a8... Merge branch 'wip/carlosg/data-update-cleanups' into 'maste (*)
  34a6149... website: Add Recoll to 'Related projects' (*)
  902bf3c... docs: Document limits in Tracker (*)
  a55e971... docs: Add section for performance tips (*)
  73113a6... docs: Add first couple of chapters for SPARQL tutorial (*)
  9c3e713... Update Ukrainian translation (*)
  d7b22d2... Merge branch 'wip/carlosg/some-docs' into 'master' (*)
  9e30a3a... Update Turkish translation (*)
  fc22243... Updated Spanish translation (*)
  f022da2... libtracker-data: Fix retrieval of old datetime values for u (*)
  c08a372... tests: Add tests for insertion of dates with UTC offsets (*)
  da56fb7... libtracker-direct: Fix notification of create events (*)
  be51f2f... libtracker-data: Avoid clearing an already empty FTS row (*)
  601c324... tests: Add test for property path queries on non-existent g (*)
  3bc696f... libtracker-data: Handle property path subqueries on unknown (*)
  1dab90f... trackertestutils: Make await_update handle for InformationE (*)
  445ae0f... trackertestutils: Prepare for DataObject/InformationElement (*)
  569b0a9... libtracker-sparql: Don't skip TrackerResources by URI (*)

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