[tracker] (14 commits) ...Merge branch 'wip/carlosg/insert-perf' into 'master'

[Sam Thursfield <sthursfield src gnome org>]

Summary of changes:

  2ad29dc... libtracker-data: Add internal error code for failed constra (*)
  9a89c7c... libtracker-data: Inverse expectations when inserting a reso (*)
  1733879... libtracker-data: Prefer tracker_class_get_id() over queries (*)
  73974bb... libtracker-data: Don't pass resource ID to resource_buffer_ (*)
  6d72ce1... libtracker-data: Expose function internally to insert URI i (*)
  980e5b9... libtracker-data: Unify the code assigning IDs to resources (*)
  69f7e83... libtracker-data: Perform creation of base tables a bit earl (*)
  56b8bf5... libtracker-data: Throw away the ontology/regular resource I (*)
  8ed66ae... libtracker-data: Cache set of new IDs in the transaction (*)
  9e9a34f... libtracker-data: Add fast path to insert new bnode UUIDs (*)
  fe0169e... libtracker-data: Drop unused struct field (*)
  4c95590... libtracker-data: Cache SQL string in char* form (*)
  1f0b361... libtracker-data: Avoid varargs function where possible (*)
  0072e59... Merge branch 'wip/carlosg/insert-perf' into 'master'

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