This changeset reverts some or all edits made in changesets 147720023, 147720211, 147721952, 147722111, 155286651, 155287022, 155288036, 155288500, 155288973, 155289709, 157572648, 157572888, 157572949, 157573004, 157573247, 157573318, 157573518, 157573608, 157573653, 157573791, 157573868, 157573927.