[ttml2] Pull Request: Change semantics of <length> component of tts:rubyReserve (#779).

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

== Change semantics of <length> component of tts:rubyReserve (#779). ==
Closes #779.

**N.B. Due to timing considerations, unless this PR is substantively broken, please file a new issue for any editorial points that need to be addressed. I will address such follow-on editorial issues during after CR2 is published.**

See https://github.com/w3c/ttml2/pull/826

Received on Monday, 11 June 2018 10:13:27 UTC