Configure Markdown logger to reduce noise in logs. Markdown is logging at the INFO level whenever it loads an extension. This looks like it has been fixed in master at GitHub. But until then we will explicitly configure the MARKDOWN logger to log at WARNING or higher.

tinyMCE.addI18n('en.autosave',{
restore_content: "Restore auto-saved content",
warning_message: "If you restore the saved content, you will lose all the content that is currently in the editor.\n\nAre you sure you want to restore the saved content?"
});