VC support for bzr

[Dave Love]

[Sorry if this eventually turns up twice, but gnu-emacs-sources seems
to have eaten the original attempt.]

This provides basic support for the bzr system in VC.  I'd be
interested in any comments before sending it in the direction of bzr.
Per the commentary, I realize there's another implementation.

Caveats:  Various problems with VC itself prevent proper support for
non-RCS-like formats and apparently won't be fixed, so some aspects of
handling version tags and log files fail.  Also it seems that bzr
isn't stable, so there may well be problems with future versions of it.

vc-bzr.el
Description: application/emacs-lisp