Table Context improvements

[CarlosNZ]

Ideas that came up as part of keyboard shortcut discussion:

• Handle "clicking" of table rows by keyboard better by registering "clickers" with each table row. Couple of possible implementations here
• Combine basic property hooks into one, as per this comment
• Store current (local) sort order in an array of IDs (so it doesn't automatically re-sort when values change, only when sort headers explicitly clicked (see comment)
• Table should remember sort (and filter?) state when you go back to it after a detail view. (Actually, I think all tables should remember their last state, even after closing the app -- so can we save table state in localStorage?)