[tei-council] deprecation & release timing: 1737

For issue 1737 we agreed last face-to-face to remove macroSpec/@type on 2018-10-01 (the same date we are removing all the data.* macros, I guess). I have just put the @validUntil on to make that happen. But the timing concerns me a little -- when is our next release going to be? Unless it is this month, people will have < 5 months to see the red health warning. BTW, we've agreed to deprecate data.* on 2018-10-01, but who is doing that and is there an issue open for it? (I have this nagging feeling all of a sudden that it's me. :-)