* Rearrange state package a bit, add some code to look up the right state resolution algorithm
* Remove shared
* Add GetRoomVersionForRoomNID
* Try to use room version to get correct state resolution algorithm
* Fix room joins over federation
* nolint resolveConflictsV2 because all attempts to break it up so far just result in it being awfully less obvious how it works
* Rename Prepare to NewStateResolution
* Update comments
* Re-add missing tests
* Add wiring for querying the roomserver for the default room version
* Try to implement /capabilities for room versions
* Update copyright notices
* Update sytests, add /capabilities endpoint into CS API
* Update sytest-whitelist
* Add GetDefaultRoomVersion
* Fix cases where state package was shadowed
* Fix version formatting
* Update Dockerfile to Go 1.13.6
* oh yes types I remember
* And fix the default too
* Rough first pass at adding room version abstractions
* Define newer room versions
* Update room version metadata
* Fix roomserver/versions
* Try to fix whitespace in roomsSchema
