[ttml2] Pull Request: Further refinement of features (#814).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Further refinement of features (#814). ==
Closes #814.

See https://github.com/w3c/ttml2/pull/815

Received on Tuesday, 5 June 2018 01:38:55 UTC