Renamed + Fixed

Fixed the is_enabled function for widgets. Accidentally goof'd the logic
on that one. It's all good now.

Fixed some random wall objects being red and interactable.

Renamed the Sound classes a little bit, but the naming was taken from a
'guru' post on Rune-Server. So don't take my word for its accuracy.

Fixed cache not properly rewriting file index information causing it to
re-download the entire cache via ondemand.