Added async ops to SignalR and changed WebSocketTransport websocket creation order.
Added NET35 to more compiler conditionals
More Fixes
Fixed WST Task.Delay
Changed OpCode to WebSocketMessageType
Revert "Changed OpCode to WebSocketMessageType"

This reverts commit e48dd7ff816031456fdbeb56ed774ecf919ea16e.
Added WSMessage Type and conversion Extensions
more reference fixes