Updated to support more than 9 repositories
Updated to support more than 9 repositories

The new '&' method of entering choices only reads a single character, so
doesn't work if you have more than 9 repositories.

Also restored the passing of "diff" and "parent-diff" to new_request().

luxbet/mercurial-reviewboard,luxbet/mercurial-reviewboard,windix/mercurial-reviewboard