Log Message:
Update to 1.4:

This release of Bazaar includes handy improvements to the speed of log and
status, new options for several commands, improved documentation, and better
hooks, including initial code for server-side hooks.  A number of bugs have
been fixed, particularly in interoperability between different formats or
different releases of Bazaar over there network.  There's been substantial
internal work in both the repository and network code to enable new features
and faster performance.

BUG FIXES:

* Pushing a branch in "dirstate" format (Branch5) over bzr+ssh would break
  if the remote server was < version 1.2.  This was due to a bug in the
  RemoteRepository.get_parent_map() fallback code.
  (John Arbash Meinel, Andrew Bennetts, #214894)