message: Reduce verbosity in actor_system_config.hpp
diff: @@ -59,17 +59,18 @@ public:
  using value_factory = std::function<type_erased_value_ptr ()>;
  - using value_factory_string_map = std::unordered_map<std::string, value_factory>;
  + using value_factory_string_map = hash_map<std::string, value_factory>;
  - using value_factory_rtti_map = std::unordered_map<std::type_index, value_factory>;
  + using value_factory_rtti_map = hash_map<std::type_index, value_factory>;
  - using actor_factory_map = std::unordered_map<std::string, actor_factory>;
  + using actor_factory_map = hash_map<std::string, actor_factory>;
  - using portable_name_map = std::unordered_map<std::type_index, std::string>;
  + using portable_name_map = hash_map<std::type_index, std::string>;
  - using error_renderer = std::function<std::string (uint8_t, atom_value, const message&)>;
  + using error_renderer = std::function<std::string (uint8_t, atom_value,
  + const message&)>;
  - using error_renderer_map = std::unordered_map<atom_value, error_renderer>;
  + using error_renderer_map = hash_map<atom_value, error_renderer>;
  using option_ptr = std::unique_ptr<config_option>;
  