Fixed bug where IE 8 would throw and error when removing editors with a cross domain content_css setting.
Fixed bug where IE 9 wouldn't be able to select text after an editor instance with caret focus was removed.
Fixed broken unit test on IE 7, 8.
Fixed bug where the autoresize plugin wouldn't resize the editor if you inserted huge images.
Fixed unit test that breaks Gecko if focus isn't within the body element.