libtracker-data: Trigger rebuild of FTS tokens on parser changes
libtracker-data: Trigger rebuild of FTS tokens on parser changes

Whenever there's a change in the implementation of our tokenizers, we'll
trigger a rebuild of the FTS table. This allows for live updates to our
tokenizers without the need to redo the database from scratch.

The FTS rebuild is also triggered on locale changes.

outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker