* data/dbus/tracker-extract.xml:
	* src/tracker-extract/tracker-extract.[ch]:
	* src/tracker-indexer/tracker-indexer.c:
	* src/tracker-indexer/tracker-module-metadata-utils.c: Added
	GetPid API call to extractor. We now call this furst so we know
	what process to kill when the extractor misbehaves. The old
	solution would kill EVERY tracker-extract process on the system
	which (if the user has permissions) is potentially quite bad for
	multiple users using Tracker. This should be quicker than the old
	solution too.

svn path=/trunk/; revision=3120