add jquery ui to tree/matrix demo
add jquery ui to tree/matrix demo

mugitty/bbop-js,berkeleybop/bbop-js,mugitty/bbop-js,berkeleybop/bbop-js,berkeleybop/bbop-js,mugitty/bbop-js,mugitty/bbop-js,berkeleybop/bbop-js,berkeleybop/bbop-js,mugitty/bbop-js