[PATCH evolve-ext] bookmarks: update to use new readactive api

[Augie Fackler]

On Thu, May 7, 2015 at 4:49 PM, Pierre-Yves David
<pierre-yves.david at ens-lyon.org> wrote:
> Can you make a small compatibility layer so that we do not have to bump the
> version of Mercurial required?


I explicitly asked the changes in hg to not have compat paths because
it's better for extensions to break violently than to emit warnings
that will only annoy users and never be seen by extension authors.