[L3 CR] Horizontal Review: Internationalization (i18n)

[timcappalli]

https://www.w3.org/International/review-request

[timcappalli]

Request opened: w3c/i18n-request#257

[MasterKale]

From WG FD2F: PR #2280 will address concerns raised during i18n review. When that PR is merged this can be closed.