Removed unused image file
Moved location of toolbar button image
Moved location of toolbar button image; removed unused CSS rule
Deleted unused variable and added new rule to copy to local directory
Removed inline CSS styling from XUL file
Added rule for font for <description>; moved styling for prefwindow width here
Added rule for font for <description>; moved styling for prefwindow width here
Moved image file
Removed UI strings that are no longer in use