Enabling the use of PRIORITY at any time
Change log title fix
Herve's edits
Merge branch 'priority_idle'
Fixing HTML5 reference manually
Not sure how to best capture this
Fix Error Code Registry
Merge pull request #648 from summerwind/master

Fix Error Code Registry
Merge pull request #650 from http2/jp

Credit where credit is due
Wording change
minor editorial twiddles
Updating change log, retrospectively
Merge pull request #653 from phluid61/master

minor editorial twiddles
Limiting TLS restrictions to 1.2
Clarifying DHE usage
Adding cipher suite ordering restriction
Fixing references
Editorial tweak
Making it clear how INADEQUATE_SECURITY applies
Editorial changes