[QA] WDAqua-core1 renaming and new endpoint

Hello,

there was a renaming of WDAqua-core1 to QAnswer. Moreover the gerbil API moved to:

curl --data "query=What was the event in Denman Arena where Ty Arbour was a former team?" --data "kb=dbpedia" http://qanswer-core1.univ-st-etienne.fr/api/gerbil

NOTE the "api"

Thank you
D063520

Search the repository for references to WDAqua-core1 and the Gerbil API URL, then inspect the entry point or configuration that defines the endpoint. Verify the integration uses the QAnswer name and the new URL including /api; done means the QA request reaches the documented endpoint.

Written by the indexing model from the issue text.