alias doutonbori -> dotonbori

BUR #53119 has been approved by @evazion.

create alias doutonbori -> dotonbori

Like many Japanese place names (e.g. Tokyo, Osaka), Dotonbori is officially romanized without the long vowel.

See: http://www.dotonbori.or.jp/en/

BUR #53122 has been approved by @evazion.

create alias tsuutenkaku -> tsutenkaku

While we're here, this Osaka attraction also has no long vowel in the official romanization:

https://www.tsutenkaku.co.jp/Guide-pdf/mishiranguide_english.pdf

The bulk update request #53119 (forum #412340) has been approved by @evazion.

The bulk update request #53122 (forum #412351) has been approved by @evazion.