[MERGE] Add support for branch-associated locations

[James Westby]

On Thu, 2008-06-26 at 13:43 -0500, Matthew D. Fuller wrote:
> On Thu, Jun 26, 2008 at 02:12:31AM -0400 I heard the voice of
> Aaron Bentley, and lo! it spake thus:
> > 
> > This patch adds support for branch-based location lookups.
> > Specifically, the values ':bound', ':parent', ':public', ':push',
> > ':this' and ':submit'.
> 
> Big fat +1 conceptually.
> 
> 

Yep, I agree.

I think it would be great if there was a help topic to go along with
them, unless you feel they are covered elsewhere, but I don't know
where that might be.

I also have two questions, not meant to block the merge any way.

Firstly, I read the revisionspec topic about submit: the other day,
and it was very good, but I think this useful thing might be a bit
hidden. Also, I think there may be some confusion about the
different branch relationships there are. Is there some way that
we can help users understand them a bit better and use that knowledge
to work more effectively? Would a separate topic on branch relationships
work for this?

Secondly, would it be possible to extend this so as to fulfil the same
purpose as the "bzr-bookmarks" plugin? It's a reasonably common user
request, and I think it would be good to have in the core. Is it better
to have something like bzr-bookmarks instead, so you can do 
myserver:whatever instead?

Thanks,

James