Added the ability to turn UTF-8 encoding checks off to increase performance
Separated encoding checks into its own set of classes
Encoding checks now use mbstring or iconv depending on availability
Created parent interface for messages and frames
Created Hixie Connection
Applied updated interfaces to Hixie versions
Removed __toString on msgs/frames since there could be 2-3 types returned
Updated deps; React Socket notify client of shutdown
Separated core interfaces into many
Removed initial version support out of handshake negotiator
Moved message parser responsibility to each version
Removed __toString method from MessageInterface as to not confuse message from payload
Support for RFC control frames
Support message concatenation
[BCB] (temporary) WsConnection hard coded to RFC version
Handshake checks for \r\n\r\n anywhere, not just at end of string
Moving forward we're going to assume `mbstring.func_overload` is off.
For that reason we're not going to call `mb_` functions when checking byte level strings.
Separated handshake negotiation into its own class
`HandshakeNegotiator` deals with Request/Response classes
These changes are geared towards separate responsibility
Refs #29
Updated how Ratchet handles WebSocket sub-protocols
Broke out WsServerInterface to not extend MessageInterface;
Components will instead use Interface segregation principle
WAMP is now able to work without the developer having to
manually enable the WAMP sub-protocol
