This changeset reverts some or all edits made in changesets 151909999, 151910183, 151910535, 151910812, 151910957, 151911003, 151911105, 151911278, 151912297, 151912516, 151912572, 151912781, 151913095, 151913662, 151913930, 151914103, 151914313, 151914425, 151920951, 151920964, 151921005, 151921015, 151921025, 151921118, 151921128, 151921182, 151921227, 151921299, 151921416, 151921515, 151921574, 151921781, 151921906, 151921911, 151922083, 151922326, 151922380, 151922457, 151922497, 151922605, 151922632, 151922731, 151925087, 151925226, 151925604, 151925671, 151925849, 151925926, 151926006, 151926127, 151926150, 151926287, 151926451, 151926580, 151926708, 151926794, 152012853, 152013193, 152013368, 152013379, 152013637, 152013749, 152013824, 152013969, 152014017, 152014034, 152014111, 152014213, 152014321, 152014380, 152014397, 152014455, 152014478, 152014566, 152014592, 152014635, 152014651, 152014697, 152014810, 152014851, 152057124, 152057422, 152057464, 152057516, 152057552, 152057591, 152057619, 152057666, 152057836, 152058076, 152058346, 152058618, 152058622, 152058742, 152058784, 152098778, 152099742, 152099943, 152099967.