Fixed incompatibility with CocoaHTTPServer library
Fixed incompatibility with CocoaHTTPServer library

CocoaHTTPServer has the older version of the WebSocket class that I based
mine off of, but its HTTPServer calls a class method on it that didn’t
exist in my version, causing a runtime exception. Added a no-op version
of that method to prevent that.

mpapp/WebSockets-Cocoa,couchbaselabs/WebSockets-Cocoa