[Tracker] Thunderbird E-mail Indexing

["Erlend Davidson" <erlend davidson gmail com>]

I've done a bit of reading about the situation with indexing thunderbird e-mails.

Beagle wrote a mork parser but it is no longer enabled in beagle because of memory issues.  They have now gone down a different route.

http://postlund.org/2007/07/18/beagle-thunderbird-extension-is-out/

This basically seems to be an extension for thunderbird, which makes it produce easily indexable files in addition to tb's own mork database.  It has already written (the link to the xpi file is down at the bottom of the page) and it should be fairly simple to get tracker to work with it.