hgweb: add phase to {changeset} template It's pretty surprising phase wasn't part of this template call already. We now expose {phase} to the {changeset} template and we expose this data to JSON. This brings JSON output in line with the output from `hg log -Tjson`. The lone exception is hweb doesn't print the numeric rev. As has been stated previously, I don't believe hgweb should be exposing these unstable identifiers. (We can add them later if we really want them.) There is still work to bring hgweb in parity with --verbose and --debug output from the CLI.