[tracker] (8 commits) Non-fast-forward update to branch wip/carlosg/local-connection-mapping

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/local-connection-mapping' 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:

  e45b01e... libtracker-data: Add private API to map local connections
  a6519e5... libtracker-sparql: Add tracker_sparql_connection_map_connec
  c30c66f... tests: Generalize service tests so we can specify full URIs
  b1808e5... tests: Test locally mapped connections in the services test

Commits added to the branch:

  066c739... libtracker-data: Add extra reference to graphs HT when deal (*)
  7f22a16... libtracker-data: Initialize graphs hashtable early with dat (*)
  b093bbe... libtracker-data: Add locking around graphs hashtable (*)
  2b4f585... Merge branch 'wip/carlosg/hashtable-ownership' into 'master (*)
  768bc3d... libtracker-data: Add private API to map local connections
  1ef50be... libtracker-sparql: Add tracker_sparql_connection_map_connec
  9417e30... tests: Generalize service tests so we can specify full URIs
  a25219f... tests: Test locally mapped connections in the services test

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