Topic: alias assless_shorts -> backless_shorts

The bulk update request #12505 is pending approval.

create alias assless_shorts (27) -> backless_shorts (8)
create implication backless_shorts (8) -> backless_clothing (2159)

Reason: Synonyms. This would be aliasing more-used to less-used, but I believe this is warranted to make the name consistent with the umbrella backless_clothing.