[MERGE] make workingtree.branch readonly

[Martin Pool]

On 21/04/2006, at 8:01 AM, Robert Collins wrote:

> The branch attribute in working tree is currently read-write, but it
> should not be: A working tree's branch is dependent on whats on disk,
> not on arbitrary object construction.
>
> This patch makes the attribute a property with a getter and a  
> docstring
> but no setter or deleter.

+1

-- 
Martin