Update licenses (#1305)
* Update license to credit 3rd party code and assets
* Add Jekyll Group-By-Array license credit
Update languages with localized UI text strings
Add Polish localized UI text strings
Ref: #1304
Replace `fieldset` elements with `div.form-group`
Move Staticman v2 comment logic above v1 as it will be deprecated soon.
Add Staticman v2 form scripts
Update CHANGELOG and history
Add instructions for configuring Staticman v2 comments
Add support for Staticman v2 endpoint and reCAPTCHA
Ref: #803
Fix improperly named staticman.yml file
Merge branch 'staticman-v2'
Add support for Staticman v2 endpoint and reCAPTCHA on `/docs`
Ref: #803
Add Naver Webmaster Tools documentation
Add naver-site-verification to SEO (#1286)
* Add naver-site-verification to SEO
* Add 2 space indent
Improve accessibility of navigation menu button
Add `type` and label text.
Fixes #1099
Update CHANGELOG and history
Update CHANGELOG and history
Fix system font rendering in Chrome on macOS/OS X (#1290)
Use `BlinkMacSystemFont` instead of private font name.
Closes #1289