[_ASHierarchyChangeSet] Oopsy daisy
[ASDataController] Tweak our update validation
[ASHierarchyChangeSet] Fix bugs
Finish up some stuff
[ASDataController] Put some stuff back
[ASChangeSetDataController] Always use changeset
[ASDataController] Put other stuff back
[_ASHierarchyChangeSet] Use fast enumeration
[_ASHierarchyChangeSet] Fix assertion format strings, return on fail so we don't crash in production
[ASDataController] Store data source item counts as vector rather than NSArray
[ASDataController] Build some tests for the update validation
[ASDataController] Fix issues with update validation
Get rid of new file
[ASDataController] Suppress changeset validation before initial reload
[ASDataController] Make invalid update log vs. exception publicly toggleable
