Merge branch 'release/v3.1.35' into develop
update URIs for XMLENC-CBC-ATTACK and XMLENC-PKCS15-ATTACK
updated DOM-LEVEL-3-EVENTS ref

Updated from 2011->2012 stable WD snapshot
Fix a bug where some nested headers would get appended to the incorrect section (e.g.: an H4 right after an H2 could be appended to an H3 further up in the content).
Add CSP to biblio.js
Add reference to screen-orientation spec.
Add reference to pointerevents spec.
update references in preparation for XML Security publications
fix cross-reference entry
update XMLSEC-RELAXNG for publication
added DOM4-EVENTS
added editor's draft date to DOM4-EVENTS
Merge pull request #106 from fhirsch/develop

update URIs for XMLENC-CBC-ATTACK and XMLENC-PKCS15-ATTACK
Merge pull request #109 from travisleithead/gh-pages

Update D3E ref
Merge pull request #111 from tobie/fix-nested-headers

Fix a bug where some nested headers would get appended to the incorrect ...
Merge pull request #112 from mounirlamouri/patch-1

Add CSP to biblio.js
Merge pull request #115 from sspeiche/gh-pages

Added more biblio refs needed for LDP-UCR work from LDP WG
Merge pull request #117 from tobie/bibref-screen-orientation

Add reference to screen-orientation spec.
Merge pull request #118 from tobie/bibref-pointer-events

Add reference to pointerevents spec.
Merge pull request #119 from jacobrossi/develop

Added DOM4-EVENTS to the Biblio DB