Increase buffer size to 1 << 16

Also improve camel case script

src/http_handler.hpp

@@ -152,11 +152,10 @@ struct HttpHandler : ConnectionHandler {
   static int onMessageComplete(llhttp_t *parser);
 
 private:
-  static constexpr int kFinalStageThreads = 2;
-  static constexpr int kLogSize = 12;
+  static constexpr int lg_size = 16;
   StaticThreadPipeline<std::unique_ptr<Connection>,
                        WaitStrategy::WaitIfUpstreamIdle, 1, 2>
-      pipeline{kLogSize};
+      pipeline{lg_size};
   std::thread stage0Thread;
   std::vector<std::thread> finalStageThreads;