* Remove reftracker and idmapfile, which are bzr-specific.
(Jelmer Vernooij, #693507)
* Cope with invalid timezones like +61800 a little bit better.
(Jelmer Vernooij, #959154)
* Allow non-strict parsing of fastimport streams, when
a tagger is missing an email address.
(Jelmer Vernooij, #730607)