- Proxies connected to Redis are downloaded on startup/reload
- Named proxies are no longer removed on disconnect
- Proxies now show up in `/sub list`
- Proxies now have Add/Remove events in the API
- Proxies are included in the response of the `DownloadServerList` packet
This marks the beginning of SubServers.Host. As of now it is just a
simple plugin loading API, but it is planned to become a way to host
servers on other machines.
Also, SubAPI now checks to make sure variables aren't null in many
places.