Spacious ACP 16

Additional System Tweaks:

• Plugin versions displayed alongside plugins.
• Your most online stat is ALWAYS being tracked, not just tracked when the stats widget in on a page on the front end!
• Restores ACP favicon. Upload whatever you like (ico format for now) or use the giant black IPS ico provided.
• PM members from the member page.
• S3 file methods will now display endpoint and directory structure in their listed names allowing you to actually tell the difference between various S3 entities.