SSL_CTX_use_certificate_file() function in order to allow the use of
complete certificate chains even when no trusted CA storage is used or
when the CA issuing the certificate shall not be added to the trusted
CA storage.
Thanks Daniel Kahn Gillmore
git-svn-id: file:///svn/unbound/trunk@3451 be551aaa-1e26-0410-a405-d3ace91eadb9