Tweaked mouseover comments frame - close #52

Added a maxHeight, moar scrollbars
Remove the frame before the creation, not before ajax data
Forced the frame to be created relative to the document & scrolling
Tweaked appendFrame() to permit more custom CSS, the relativeToWindow
Added fixed header hack
Added scene filtering - close #53

Modified freeleech filter
Added a torrent tagger, easier to work with torrent.classes
Performance hasn't changed, full show/hide is slow but ES'ing is not
Filter functions may need some more work