* The compiler can provide many non-explicit constructors for
aggregate types. This is sometimes desired, but it can
happen accidentally, resulting in run-time errors.
* This commit assures that no types are aggregates unless existing
code is using aggregate initialization.
* Make HTTP(S) requests on websocket ports reply with Status page
* Fix isWebsocketUpgrade to compare case insensitive
* Make websocket upgrades with no websocket protocols configured report error
* Create unit test for unauthorized requests and the status page
