This changeset reverts some or all edits made in changesets 154700466, 157041554, 157041732, 157042000, 157045899, 157046064, 157046134, 157046242, 157046371, 157052700, 157052721, 157052847, 157055304, 157343373, 157343577, 157343758, 157343790, 157343805, 157432109, 157436768, 157436846, 157437721, 157459990, 157460087, 157460266, 157461654, 157461839, 157461909, 157462151, 157462738, 157469944, 157470096, 157470122, 157470317, 157470680, 157470913, 157471006, 157471024, 157471045, 157471135, 157471223, 157556745, 157721302, 157722318, 157722343, 157722457, 157725886, 157726009, 157726059, 157726448, 157728670, 157757463, 157757479, 157757599, 157757668, 157757877, 157758229, 157761348, 157761621, 157762460, 157762558, 157763120, 157763195, 157763293, 157763348, 157763380, 157763426, 157763459, 157770244, 157770267, 157770298, 157770329, 157770473, 157770516, 157772052, 157777767, 157777803, 157777818, 157777830, 157777851, 157777857, 157856247, 157856261, 157856339, 157856363, 157856431, 157856469, 157888446, 157888550, 157888678, 157888830, 157888940, 157900219, 157900289, 158021135, 158021189, 158715295, 158715328, 158790905, 158791395, 158791503, 158791521, 158791563, 158791640, 158791671, 158991267.