1) Make message store contents more memory efficient.
2) Make notification pipeline simpler and more memory efficient.
3) Don't b64 encode websocket message bodies.
// FREEBIE
1) Store account data as a json type, which includes all
devices in a single object.
2) Simplify message delivery logic.
3) Make federated calls a pass through to standard controllers.
4) Simplify key retrieval logic.