This changeset reverts some or all edits made in changesets 154892193, 154892783, 154892904, 154893238, 154893468, 154896862, 154896925, 154897010, 154897612, 154897928, 154904774, 154936670, 154936775, 154936808, 154936978, 154938911, 154938997.