Working Draft version 1.2.2

Tristate value type: default value should be "undefined" (closes w3c#773

) (w3c#774)

Merge branch 'Rec_2017_normative_fix' into Rec_2017

put canonical term first in list in data-lt

because friggin respec changed its behaviour again

Merge remote-tracking branch 'refs/remotes/origin/master' into Core-A…

…AM_CR

update CR date

ARIA 1.1 CR candidate (first)