Update extensions & release 1.0.0-rc (#281)

plugins/wasm-cpp/extensions/custom_response/plugin.cc

@@ -149,8 +149,7 @@ bool PluginRootContext::onConfigure(size_t size) {
   // Parse configuration JSON string.
   if (size > 0 && !configure(size)) {
     LOG_WARN("configuration has errors initialization will not continue.");
-    setInvalidConfig();
-    return true;
+    return false;
   }
   return true;
 }