[tracker] (8 commits) ...Merge branch 'miner-fs-no-infinite-loops'

[Martyn James Russell <mr src gnome org>]

Summary of changes:

  c69b92d... libtracker-miner: Prevent item queue handlers from running  (*)
  722312a... libtracker-miner: Remove unneeded call to item_queue_handle (*)
  0d5336a... libtracker-miner: Protect against infinite loops (*)
  2c930cf... libtracker-miner: Prevent stalling if we drop the last queu (*)
  be3bb07... libtracker-miner: Avoid stalling when blocking file is drop (*)
  cf6352f... libtracker-miner: Don't conditionally unref blocker file if (*)
  1f881b2... libtracker-miner: Make reentry maximum (2) a #define and up (*)
  76febbd... Merge branch 'miner-fs-no-infinite-loops'

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