urlutil: make `paths` class old list of `path`...
urlutil: make `paths` class old list of `path`
We move from a `{name → path}` mapping to a `{name → [path]}` mapping. And
update all user code accordingly. For now, all the list contains exactly one
element, but we are now in a good place to make the config understand a list of
url.
Differential Revision:
https://phab.mercurial-scm.org/D10447
