Log Message:
Update to 1.2.1 by request of maintainer.

Major changes:
  bzr-svn 1.2.1

    BUG FIXES
    * Fix compatibility with bzr 2.5.0 proper. (Jelmer Vernooij)

  bzr-svn 1.2.0

    FEATURES
    * Support fetching to colocated branches in svn-import.
       (Jelmer Vernooij)
    * Follow redirects when using pycurl. (Jelmer Vernooij)
    * New hidden command 'bzr fix-svn-ancestry' command.
      (Jelmer Vernooij)

    CHANGES
    * No longer supports bzr 2.3 and 2.4. (Jelmer Vernooij)

    BUG FIXES
    * Properly abort when the commit editor commit function fails
      rather than complaining about busy connections.  (Jelmer Vernooij, #890529)
    * Ignore .svn directories that aren't actually svn working
      copies. (Jelmer Vernooij, #862910)
    * Fix find_iter_revisions when accessing repository that contains
      old mapping data. (Jelmer Vernooij, #898780)
    * Reset pycurl state after OPTIONS request.
      (Jelmer Vernooij, Vincent Ladeuil, #774571)