Add integration test for wildcard authz reuse. (#3320)
Add integration test for wildcard authz reuse. (#3320)

This commit adds a small integration test that ensures that a valid
HTTP-01 authorization is not reused for a wildcard issuance.
letsencrypt/boulder,jcjones/boulder,jfrazelle/boulder,bmw/boulder,letsencrypt/boulder,bmw/boulder,letsencrypt/boulder,lucasallan/boulder,jsha/boulder,bmw/boulder,jfrazelle/boulder,jcjones/boulder,jfrazelle/boulder,jcjones/boulder,lucasallan/boulder,jfrazelle/boulder,jcjones/boulder,jsha/boulder,lucasallan/boulder,jsha/boulder