Add a time info caching compatibility option #62

This is needed to get good performance out of SWAM Cello until this
issue is fixed by the plugin.

src/plugin/plugin-bridge.cpp

@@ -653,6 +653,9 @@ void PluginBridge::log_init_message() {
 
     init_msg << "other options: ";
     std::vector<std::string> other_options;
+    if (config.cache_time_info) {
+        other_options.push_back("hack: time info cache");
+    }
     if (config.editor_double_embed) {
         other_options.push_back("editor: double embed");
     }