Added XEP-0166 and JINGLE as alias
Make /bibrefs and /xrefs return the whole list of references.
Added DTMF reference
aliased duplicate entry
Updated APP-URI
fixed missing comma
Fix bug in handling dated references.
Cleanup.
Adding a script to normalize references.
Update PAGE-VISIBILITY.
Add scripts to clean-up biblio.json.
make PAGE-VISIBILITY ref structured
Merge pull request #2 from anssiko/patch-1

Update PAGE-VISIBILITY.
Update version number.
Fix remaining W3C unstructured references.
Make scripts runner async.
Fix date.
Fix hrefs.
Shift W3C specs to point to /TR/short-name.
Extract bibref to its own module.