Location bar names should be more concise

[Ian Clatworthy]

When a colocated branches workspace is created, the name shown for the checkout is "foo -> trunk". I think simply "foo" is sufficient: trunk can be implied.

When a branch is shown inside a virtual repository, the name shown is "foo (full-path)". I think "foo (parent-directory-name)" is enough given that the full path is available as the tooltip. It's also more consistent with what we show for branches in shared repositories.

[Ian Clatworthy (ian-clatworthy)]

Fixed in rev 451 of the 1.0 branch