propdef tables for shorthands

We've been leaving most fields in shorthand propdef tables
as "see individual properties", but, I think going forward
we should fill these in if all sub-properties have the same
value. This is more useful to people looking things up in
the spec, especially as we are encouraging people to use
shorthands over longhands in many cases.

~fantasai

Received on Monday, 2 May 2016 21:57:11 UTC