* i2psnark tracker handling tweaks:
    -   Add link to tracker details page (Postman only for now, requires bytemonsoon patch)
    -   Add Base URL to tracker list configuration
    -   Web page links built from tracker list Base URLs
    -   Only build and sort tracker list once
    -   Add anonymityWeb tracker to default list
    -   Add tooltip info for TrackerErrs
    -   Stop torrent if not registered with tracker
    -   Mark temp files as delete on exit