[imsc] Add diff from IMSC 1.0.0 and update substantive-changes-summary.txt

palemieux has just created a new issue for https://github.com/w3c/imsc:

== Add diff from IMSC 1.0.0 and update substantive-changes-summary.txt ==
To do prior to next publication

Please view or discuss this issue at https://github.com/w3c/imsc/issues/244 using your GitHub account

Received on Saturday, 3 June 2017 17:09:51 UTC