Add en dir and htmls.
Merge pull request #102 from nttcom-webcore/iwase140501_create_en_dir

Add en dir and htmls.
Translate registration.html
Added english translations for accepted.html and index.html #105
Fixed typo
Added english docs submodule
Translate default, html5lab, and registration htmls into English. #104
fixed typo
Merge pull request #108 from nttcom-webcore/alan_eng

Alan eng
Merge branch 'alan_eng' into iwase140501_translate_into_en
Modified translation based on Alan's comment
Modified enableCanonical in order to set same value as Japanese html
Modified rest comments
Merge pull request #107 from nttcom-webcore/iwase140501_translate_into_en

Iwase140501 translate into en
add hidden Field
Merge pull request #109 from nttcom-webcore/yusuke_eng

add hidden Field, and fix path from en url to ja url.
Modify hatena bookmark language from Japanese to English
Merge pull request #110 from nttcom-webcore/iwase_140507_hatena_into_en

Modify hatena bookmark language from Japanese to English
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages