AUI-1135 - Fix test for ie10
AUI-1135 - SF
AUI-1138 TreeNodeTask have a state for when one of its children is unchecked
AUI-1138 Adding tests
AUI-1138 - Add HISTORY.md entry
AUI-1139 - Fix test#12 IE7 and below uses currentStyle instead of computedStyle
AUI-1139 - SF