[tracker] (7 commits) ...Merge branch 'sam/sandbox-for-tests' into 'master'

[Sam Thursfield <sthursfield src gnome org>]

Summary of changes:

  8707e0e... trackertestutils: Really fix tracker-sandbox startup when i (*)
  4e9f345... tracker-sandbox: Rename --index flag to --store (*)
  1bac80c... tracker-sandbox: Configure index directories correctly (*)
  88d32ef... tracker-sandbox: Allow specifying directories to index on c (*)
  65098d1... tracker-sandbox: Use correct settings schema for Tracker 3 (*)
  bbaf45b... tracker-sandbox: Disable miner initial sleep (*)
  f434a61... Merge branch 'sam/sandbox-for-tests' into 'master'

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