Remove a bunch of fields from the `unsigned` property of PDUs. These things
shouldn't be passed over the Federation API, and they *really* shouldn't be
trusted if they are sent by another server.
* `replaces_state` *is* returned by Synapse, but probably shouldn't
be.
* `redacted_because`, `prev_sender` and `prev_content` are not sent by Synapse.
* Introduce a new "added-in" template and use it on endpoints
* Use "added-in" on schema properties too
* Annotate sections of the spec with their added versions
* Demo of "added-in" on a room version (to be fleshed out)
* Use clearer versioning semantics
* Update and fix validator for Swagger custom properties
* Fix docs
* Cut/paste room version spec to its own page
* Move grammar to bottom + add feature matrix
The version grammar is not as interesting as the actual room versions, so this moves that whole section to the bottom.
* Fix all links to room versions
Apparently, in response to a /_matrix/federation/v1/user/devices/{userId} request, Synapse actually returns a key called "self_signing_key" instead of "self_signing_keys".
Historical note: this was originally a series of several commits, spread out
over several weeks. They have been squashed together to make `git annotate`
work properly.
The original commits were:
* 91ab3934 <Will> 2021-01-25 21:16:42 -0800 Add raw API end event schemas into /data directory
* aae22f47 <Will> 2021-01-25 21:33:06 -0800 Remove non-data files
* 1092d4ca <Will> 2021-01-26 20:41:33 -0800 Add data-compatiuble extension (.yaml) to all data files that currently omit one
* 21060109 <Will> 2021-01-26 20:57:28 -0800 Remove symlink to event-schemas, and update openAPI schema paths accordingly
* 4f633845 <Travis Ralston> 2021-04-12 21:54:54 -0600 Fix event schema examples too
* 301c7b2f <Will> 2021-02-05 10:15:42 -0800 Restore docs describing OpenAPI extensions that we use