... as discussed in [Issue 507](https://github.com/openstreetmap/operations/issues/507)
and described by @mmd-osm.
To activate, set the value of `doorkeeper_signing_key` to RSA private key.
Allows using openstreetmap as an identity provider.
Adds `openid` scope to OAuth2 authorizations, required to login to OSM.
Currently, the only claims returned are:
- "openid" scope: "sub" and "preferred_username"
- "read_email" scope: "email"
Fix some HTML tag mismatches and other glitches. These are minor, and don't appear to cause browsers any problems, but for the sake of correctness:
* A closing td which should be a closing div.
* A closing h3 for a corresponding h6
* Two tables with `<thead>` tag and missing `<tr>` around the `<th>` headings.
test change for thead fix
This makes it easier to navigate around these pages. Since each tab
corresponds to a given controller, this makes the selection of active
tabs straightforward.
