Merge pull request #4 from ygoto3/userTimingApiTranslation

User Timing API: Understanding your Web App
Merge branch 'master' of https://github.com/html5rocks/www.html5rocks.com
Updated broken link in datachannel example according to @samdutton's patch
Fixed :host css according to @ebidel's cb299f7 patch
Sync code in O.o() with sample code at cf9fc92
Fix typo in customelements as 0b7e3b4
Updated 'Async Call Stack' according to 3c6cd43
Updated custom element according to bb77383
Replaced shadow DOM combinator with new spec's, according to #1044 and ca40567
Also fixed header.html in shadowdom-201
Merge remote-tracking branch 'upstream/master' into observe_ja
Updated whole articles in webcomponents. e.g. shadowdom combinator, ...
hotfix: added missing email field to profile.yaml for preventing error on database/load_all
Automatically updating the calendar
Merge pull request #1167 from cwdoh/hotfix.yaml_error

Added missing email field to profile.yaml
Merge pull request #1166 from cwdoh/article.ko.massive.update

Massively updates of Korean translations.
Automatically updating the calendar
Automatically updating the calendar
Automatically updating the calendar
Automatically updating the calendar