Switched to clear fix instead of overflow hidden for contains.
Fixed various float issues in IE.
Removed mobile CSS (not sure how old it is, but it's not used).
Fixed the switched big tree settings name for storage settings.
Fixed IE javascript issue with nag bars.
Fixed another clearing issue in IE.
Fixed alignment of advanced search.
Namespacing fixes.
More IE9 related fixes.
IE 7/8 fixes.