Minor UI suggestions

[Searinox]

Hello,

Would it be possible to add the following changes to MuWire:

-Use OS file extension icons in listings.
-Add an "Open Downloads Directory" button somewhere in the Downloads tab for quick access to the folder.

Thank you.

[zlatinb]

Both are possible, I vaguely remember how we did the OS file extension icons in LimeWire so it may not be too much work. I'll add both items to the menu.