Update boilerplate/header-w3c-html-core

added myself to editors list
Update boilerplate/header-w3c-html-core

fixed code error
updated main definition

Added clarification on what to use to mark up main content of sub
sections, removed reference to main content 'section', based on
discussions on the public HTML thread
http://lists.w3.org/Archives/Public/public-html/2013Feb/thread.html#msg3
clarified figure usage

modified figure element text to clarify its use. based on discussions on
public HTML starting here
http://lists.w3.org/Archives/Public/public-html/2013Jan/thread.html#msg135
added back correct code example description

this was overwritten in

https://github.com/w3c/html/commit/56f2e6966acc7875ff55d25dbb74ba1f1c308c7d
added captcha advice

resolves bug https://www.w3.org/Bugs/Public/show_bug.cgi?id=9216
tweaked captcha wording

modified based on Silvia's comments on the intitial captcha commit
https://github.com/w3c/html/commit/be98cc1e8ec8634a5012f33b08d61c1a5576e06b
grammatical fix
added note to nav element about use of list markup

related discussion on public HTML stats here
http://lists.w3.org/Archives/Public/public-html/2013Feb/0052.html
changed advice on use of h1 elements

based on bug https://www.w3.org/Bugs/Public/show_bug.cgi?id=19741
Reduce minor difference to WHATWG spec from patch
https://github.com/w3c/html/commit/67934d61a46c1a2d8f1203ed0084f19f63a18af0
git-svn-id: http://svn.whatwg.org/webapps@7680
340c8d12-0b0e-0410-8428-c7bf67bfef74
[giow] (3) Compatibility with deployed content.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=18836
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7681 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit 73e5bd105b92a08eca51e4d7f2be3fafe05b4ed9)

onmouseenter, onmouseleave
[e] (0) Clarify that this is not a convention, just a possible technique for the author's own use.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=18520
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7682 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit ccfe83f0409ee19724321a970254e66737dfbf13)

<code @class>
[e] (0) Somehow I missed <ol type> in the index. And put <menuitem type> in the wrong place.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=19964
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7683 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit 2e21706d74a94d9d1d3207c34604adcd6840db02)
[e] (0) CLDR isn't actually normative.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=19971
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7684 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit 78ad3d3ac58759e3baff9b1b77139e005786f7b7)
[e] (0) Try adding yet more explanatory text.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=17918
Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7686 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit bde648fc225ba2be9350326fe812754d6a784b5c)

Closes W3C bug: https://www.w3.org/Bugs/Public/show_bug.cgi?id=16165
(Recognition of i18n number formats)
[e] (0) Fix some typos or copypasta.
Affected topics: Canvas, Workers

git-svn-id: http://svn.whatwg.org/webapps@7687 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit f131bfd540d9e56538fba0ab5836b5a31f64b740)

Fix context.fillText example call.
[giow] (0) Consistency with HTMLModElement.dateTime
Affected topics: DOM APIs, HTML

git-svn-id: http://svn.whatwg.org/webapps@7688 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit 08cbd36c4162e0ae454113f94828690aa5498ca8)

dateTime spelling consistency
[giow] (3) Define the URL of a document.open();location.reload(); Document.
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=19823
Affected topics: DOM APIs, HTML

git-svn-id: http://svn.whatwg.org/webapps@7689 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit ca377a4b0f9f783b650af548c41747e9d7ab8f9e)

Clarify overridden URL.
[e] (0) XHR defines this now
Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=19892
Affected topics: HTML, Workers

git-svn-id: http://svn.whatwg.org/webapps@7690 340c8d12-0b0e-0410-8428-c7bf67bfef74
(cherry picked from commit 60f8ceaaaba2192d95dc83e6ee56230352222b85)

Remove XMLHttRequest monkey patch