[Tracker] tracker-tags-plugin for Nautilus

[Debarshi Ray <debarshi ray gmail com>]

Here is an initial feature incomplete version:
http://rishi.fedorapeople.org/tracker-tags-plugin-0.1.0.tar.gz

The addition and removal of tags should be working, but the list does
not get updated immediately. You have to reopen the properties dialog
again. It is not yet possible to attach tags to files.

I have some queries:
+ I could not find an object that has signals indicating the addition,
removal, etc. of nao:Tags. It seems that there are objects for other
classes.
+ How shall we update the list? Shall we connect to a signal exported
by Tracker over DBus, or shall we just add the tag label to the list
when the async operation finishes? I feel we should use signals so
that tag manipulations by other applications are also reflected.
+ Shall we allow the plugin to work with multiple files?

Happy hacking,
Debarshi
-- 
One reason that life is complex is that it has a real part and an
imaginary part.
    -- Andrew Koenig