ws connect has a new option to send HTTP headers + use WebSocketHttpHeaders instead of unordered_map<string, string>

ixwebsocket/IXWebSocketTransport.h

@@ -24,7 +24,7 @@
 #include <memory>
 #include <mutex>
 #include <string>
-#include <unordered_map>
+
 #include <vector>
 
 namespace ix
@@ -78,7 +78,7 @@ namespace ix
 
         WebSocketInitResult connectToUrl( // Client
             const std::string& url,
-            const std::unordered_map<std::string, std::string>& headers,
+            const WebSocketHttpHeaders& headers,
             int timeoutSecs);
         WebSocketInitResult connectToSocket(int fd, // Server
                                             int timeoutSecs);