References needed for the pull requests originating from https://github.com/c-alpha/HTMLSourcingInbandTracks
Merge branch 'master' of https://github.com/tobie/specref

Conflicts:
	biblio.json
resolve merge conflict for MPEGDASH
Merge branch 'master' of https://github.com/c-alpha/specref
Merge pull request #137 from c-alpha/master

References for HbbTV contribution to the W3C Inband Tracks Community Group