Http server: add options to ws https to redirect all requests to a given url.

ws/ws.h

@@ -108,7 +108,10 @@ namespace ix
                       bool verbose,
                       const std::string& appsConfigPath);
 
-    int ws_httpd_main(int port, const std::string& hostname);
+    int ws_httpd_main(int port,
+                      const std::string& hostname,
+                      bool redirect,
+                      const std::string& redirectUrl);
 
     int ws_autobahn_main(const std::string& url, bool quiet);