Changed client handshake to use "Origin" instead of "Sec-WebSocket-Origin" as defined by RFC 6455 when using version 13 of the protocol.
Changed client handshake to use "Origin" instead of "Sec-WebSocket-Origin" as defined by RFC 6455 when using version 13 of the protocol.

tvanderbruggen/libwebsockets,davidgaleano/libwebsockets,davidgaleano/libwebsockets,davidgaleano/libwebsockets,tvanderbruggen/libwebsockets,tvanderbruggen/libwebsockets,tvanderbruggen/libwebsockets,davidgaleano/libwebsockets,tvanderbruggen/libwebsockets