libtracker-data: Don't use the count_changes PRAGMA, it is deprecated

See SQLite manual section here:
  http://www.sqlite.org/pragma.html#pragma_count_changes
tracker-extract-gstreamer: Don't leak file descriptors & use up all FDs

The GStreamer extractor was not calling all the shutdown functions internally
to clean up streams in failure conditions.

https://bugzilla.gnome.org/show_bug.cgi?id=704048
https://bugzilla.redhat.com/show_bug.cgi?id=741479
https://bugzilla.redhat.com/show_bug.cgi?id=959020
Updated Traditional Chinese translation(Hong Kong and Taiwan)
libtracker-common: Small changes to config file logging
tracker-preferences: Mention that TRACKER_USE_CONFIG_FILES has no effect
libtracker-common, tracker-miner-fs: Fixed config file and settings overwriting

libtracker-common: Added config tracing to avoid spaming logs most of the
time, but kept for cases where we need to see what we're doing with configs.

libtracker-common: Added +tracker_config_file_import_to_settings() We call
this now from tracker-config.c in miner-fs when using config files to update
our local GSettings. No overwriting stored GSettings happens.

tracker-miner-fs: Removed all unused _set() functions in tracker-config.[ch].

tracker-miner-fs: Only allow *local* GSettings override of verbosity and
initial-sleep from the command line.

tracker-miner-fs: Don't re-write the default config in some cases.

tracker-miner-fs: For config, don't bind DEFAULT, but only GET for most
properties, we don't want to save back what we change locally, that's what
tracker-preferences does.

https://bugzilla.gnome.org/show_bug.cgi?id=703759
Merge branch 'config-rewrite-on-start'
tracker-extract: Added stub for IVI-compatible MP3 extractor
tracker-info: Added -i switch to support querying the IVI ontology
tracker-miner / tracker-miner-files: Modified to support IVI ontology
Fixed fields in extractor and ontology
Added image properties to IVI ontology
Cleaned MP3-IVI extractor
build scripts: Added enable/disable switches for IVI ontologies and IVI-Mp3 miner
Added PNG-IVI extractor and build-scripts to go with it
tracker-extract: Added JPEG-IVI extractor
tracker-extract: add faster PNG extractor

This extractor reads metadata properties from the tEXt and iTXt sections of PNG
files, and skips IDAT sections (this is where the increased speed comes from)

Conflicts:
	configure.ac
	src/tracker-extract/Makefile.am

Conflicts:
	src/tracker-extract/Makefile.am
tracker-extract: Added png-faster-ivi
tracker-extract: Pruned some properties from mp3-ivi extractor
tracker-extract: Added GIF-ivi extractor