mercurial/templates/json/changelist.tmpl

chgserver: add fastannotate config section to sensitive list

Depending on the config value of `fastannotate.modes`, the fastannotate
extension can do different things in uisetup. Depending on value of
`fastannotate.server`, it can register new wireprotocol capabilities.

This fixes test-fastannotate-hg.t, test-fastannotate-protocol.t and
test-fastannotate.t with chg.

\{
  "node": {node|json},
  "changeset_count": {changesets|json},
  "changesets": [{join(entries%changelistentry, ", ")}]
}