(cobra bots) add a --heartbeat_timeout option to specify when the bot should terminate because no events are received

ixwebsocket/IXSocketOpenSSL.h

@@ -50,10 +50,7 @@ namespace ix
         bool openSSLServerHandshake(std::string& errMsg);
 
         // Required for OpenSSL < 1.1
-        static void openSSLLockingCallback(int mode,
-                                           int type,
-                                           const char* /*file*/,
-                                           int /*line*/);
+        static void openSSLLockingCallback(int mode, int type, const char* /*file*/, int /*line*/);
 
         SSL* _ssl_connection;
         SSL_CTX* _ssl_context;

ixwebsocket/IXWebSocketVersion.h

@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "9.5.5"
+#define IX_WEBSOCKET_VERSION "9.5.6"