This changeset adds test coverage for comparing "hg outgoing -B" in normal
Mercurial usage with Hg-Git usage. This didn't match, since previously, gitrepo
didn't provide a meaningful listkeys implementation. Now, it does.
gitrepo now has access to a GitHandler when a localrepo is available. This
handler is used to access the information needed to implement listkeys for
namespaces (currently, only bookmarks) and bookmarks.
A couple of other tests were testing "divergent bookmark" scenarios. These
tests have been updated to filter out the divergent bookmark output, as it isn't
consistent across the supported Mercurial versions.
This change wraps hg.peer to allow for capturing the repo object. It is then
passed in to new gitrepo instanceds. This will be needed to implement later
functionality, such as richer bookmark support using pushkeys.
