* clarify otk and fallback key types in examples
- remove unsigned curve25519 keys from examples because we don't use those for
otks and fallback keys
- add missing `device_unused_fallback_key_types` property, which is required
* add changelog
* keys.yml: fix one_time_keys object contents
The alternatives previously listed under two additionalProperties levels
are actually one _more_ level deeper; we still can't define them in
a formal way before moving to OpenAPI 3 but at least let's be honest
and say there's always a dict where there's always a dict. Also,
since the same data structure is used in three places now, at least
give it a name, and document the actual definition (once) separately
(not using it now because it's OpenAPI 3).
* Changelog
* 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
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