On the svn-auth-x509 branch: Update JavaHL to the latest svn_x509 API.

[subversion/bindings/javahl]
* native/AuthnCallback.cpp
  (AuthnCallback::SSLServerCertInfo::SSLServerCertInfo):
   Pass a result pool to svn_x509_certinfo_get_subject.
   Use the correct function to get the certificate issuer.
* org_apache_subversion_javahl_util_ConfigLib.cpp
  (Java_org_apache_subversion_javahl_util_ConfigLib_nativeSearchCredentials):
   Pass a result pool to svn_x509_certinfo_get_subject and
   svn_x509_certinfo_get_issuer.


git-svn-id: https://svn.apache.org/repos/asf/subversion/branches/svn-auth-x509@1640328 13f79535-47bb-0310-9956-ffa450edef68