add use_https

close #70

src/config.rs

@@ -36,6 +36,7 @@ pub fn save_value(config_path: PathBuf, key: &str, value: bool) {
         "download_bonus_content" => config.download_bonus_content = value,
         "ask_bonus_content" => config.ask_bonus_content = value,
         "force_update" => config.force_update = value,
+        "use_https" => config.use_https = value,
         _ => (),
     }
     save(config_path, config);
@@ -49,4 +50,4 @@ pub fn save_value_s(config_path: PathBuf, key: &str, value: String) {
         _ => (),
     }
     save(config_path, config);
-}
+}