rename ultra_seven_(series) -> ultraseven_(series)

BUR #23560 has been approved by @nonamethanks.

create alias ultra_seven_(series) -> ultraseven_(series)
create alias ultra_seven -> ultraseven

The official English name has Ultraseven be one word.

It would be better if you changed this BUR and the other similar ones you made recently to alias requests instead of renames.

The bulk update request #23560 (forum #269671) has been approved by @nonamethanks.

Changed to aliases.