* configure.ac:
	* src/tracker-extract/Makefile.am: 
	* src/tracker-extract/tracker-extract-vorbis.c: Added vorbis
	checks and cleaned up vorbis code. This is a backup, we use
	GStreamer normally and this is disabled by default.

	* src/tracker-extract/tracker-extract-abw.c:
	* src/tracker-extract/tracker-extract-jpeg.c:
	* src/tracker-extract/tracker-extract-mp3.c:
	* src/tracker-extract/tracker-extract-png.c:
	* src/tracker-extract/tracker-extract-ps.c: 
	* src/tracker-indexer/modules/evolution-imap.[ch]: Use
	tracker_file_() functions to open/close files with
	posix_fadvise(). 

	* src/tracker-extract/tracker-extract.c: Fixed 2 memory leaks.

svn path=/trunk/; revision=3154