[tracker] (11 commits) ...Merge branch 'wip/carlosg/coverity-fixes' into 'master'

[Sam Thursfield <sthursfield src gnome org>]

Summary of changes:

  e0e55fe... libtracker-data: Remove dead variable (*)
  d478d39... libtracker-data: Make parser check more assertive (*)
  f44a37d... libtracker-data: Add _optional() to complement _accept() (*)
  e39a475... libtracker-data: Propagate possible errors from resource_bu (*)
  ea3fbec... libtracker-data: Drop dead call (*)
  c649903... libtracker-data: Apply silent treatment to the correct erro (*)
  d6a6518... libtracker-data: Ensure an error is set (*)
  99eb08c... libtracker-fts: Remove dead check (*)
  57a863f... libtracker-data: Ensure variable is freed on error conditio (*)
  bd07941... libtracker-data: Drop always-true statement (*)
  5aaf4ec... Merge branch 'wip/carlosg/coverity-fixes' into 'master'

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