Replace file not found for Chapter 6 of AR3 WGIII
Update HTML extract of TS for AR3 WGI

The URL and file corresponded to the parent frame,
without author information.
Reorder authors to match order in source document
Replace 1 author in AR3 WGIII Ch5 (same last name, different persons)

* 1 LA author: "David Hall†(UK)"
Merge branch 'master' into qa (update missing HTML extracts)
Remove 2 extra authors from AR3 WGIII Ch6

* 2 CLA authors: "Kirsten Halsnaes (Denmark)",
                 "Anil Markandya (United Kingdom)"
Replace 1 author in AR3 WGIII Ch6 (same last name, different persons)

* 1 LA author: "Sujata Gupta (India)"
Reorder authors to match order in source document
Add 2 missing authors in AR3 WGIII Ch7

* 2 CLA authors: "Anil Markandya (UK)",
                 "Kirsten Halsnaes (Denmark)"
Replace 2 authors in AR3 WGIII Ch7 (different with same last name)

* 2 CA authors: "Tianzhu Zhang (China)", "Tim Taylor (UK)"