Revision IDs are globally unique. Users will be able to use the
Revision ID in place of its patch ID.
Make `rad merge` refuse to merge an older revision unless the `--force`
option is given.
Make the documentation more realistic by using two peers, a maintainer
and a contributor, for the client examples. Define them as 'workflow'
examples, ordering them in their own directory to aid user navigation.
Alexis Sellier
Slack Coder