[ttml2] Pull Request: Fix from TTML1 to clarify the use of attributes in TTML namespace but NOT defined in TTML

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

== Fix from TTML1 to clarify the use of attributes in TTML namespace but NOT defined in TTML ==
partially closes #358 

See https://github.com/w3c/ttml2/pull/600

Received on Monday, 29 January 2018 22:53:12 UTC