[tracker] (16 commits) Created branch writeback

[Philip Van Hoof <pvanhoof src gnome org>]

The branch 'writeback' was created.

Summary of new commits:

  a91a514... All miner SPARQL Update queries need FROM or INTO to avoid 
  aeba16a... Signalling Writeback in case a property marked as tracker:w
  6c528b6... Add initial tracker-writeback implementation.
  9fdb7d6... Changed from using a method to listening on the Writeback s
  93e3602... TrackerWriteback: add dummy module.
  a4db000... tracker-writeback: Hook writeback modules to the dispatcher
  d9c2966... Implemented writeback for MP3's Title field using id3lib
  2a1a984... Only report writeback for default graph
  d96c5eb... Pass the known list of rdf:types to the Writeback signal
  2c7e74d... Added filter for the list of rdf:type being passed vs. modu
  1d09f58... tracker-file-utils.c: Add file locking API.
  97b1863... TrackerWritebackFile: Added base implementation for local f
  b45100b... TrackerWritebackMP3: Make it inherit from TrackerWritebackF
  825a383... TrackerWritebackDispatcher: add sanity check on returned me
  e97bdee... Added writeback module for XMP
  67cd192... Handling writeback in tracker-miner-fs