[webvtt] Pull Request: Fix #231: Switch to REGION blocks instead of headers

zcorpan has just submitted a new pull request for 
https://github.com/w3c/webvtt:

== Fix #231: Switch to REGION blocks instead of headers ==
This makes region definitions more consistent with both STYLE
blocks as well as cue settings.

Issue: #231

cc @silviapfeiffer @eric-carlson

See https://github.com/w3c/webvtt/pull/277

Received on Tuesday, 1 December 2015 11:03:01 UTC