I just noticed a little loop here.
When you navigate the WPMU Dev plugins list from the dashboard within your wp-admin, it gives you the option to Download this plugin. (Languages)
Then, when you navigate to the page at wpmudev.org, it gives you the option to Install this plugin (button) but if you click the button, it simply takes you back to the plugin page, within your own dashboard of the site you select, which starts the loop over.
Just thought I would bring this to your attention. <3