gannotate 0.6 release

[Mark Rosenstand]

Jan Hudec wrote:
> One more suggestion -- perhaps you could not bother registering the
> command at all if DISPLAY is not set.

That would be kind of cool to see in 0.7 as it would also cause it to
not be tab-completable with the "simple" bash-completion script shipped
with bzr.

Maybe something for bzrk too, Scott? :)

-- 
  .-.    Mark Rosenstand        (-.)
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