Call for testing: new working tree browser in Bazaar Explorer

[Ian Clatworthy]

At long last, Bazaar Explorer has an intelligent working tree browser.
Hooray! From the NEWS item ...

> New features:
> 
> * The Working Tree browser is now more intelligent with state-based
>   filtering and popup menus available. Only the versioned items are
>   displayed by default now, though it's easy to switch the filtering
>   to show all items, changed items, ignored items or unversioned items.
>   The popup menus provide fast access to many features including
>   annotations, per-file log, per-file diff, add, revert, rename and
>   remove. A preference is provided for users who prefer the old browser.
> 
> Improvements:
> 
> * The Browse action now browses the last committed revision tree
>   rather than the working tree by default.
> 

Please test, raise bugs, tell your friends, etc.

A huge thank-you to Gary van der Merwe for doing all the hard work under
the covers inside QBzr.

Enjoy,
Ian C.