Don't rely on unsupported configuration

Instead of relying on `unsupported.dbms.security.auth_store.location`  to
control where the auth store is kept, we now use `dbms.directories.data`.

Author: pontusmelke

driver/src/test/java/org/neo4j/driver/v1/integration/CredentialsIT.java

@@ -34,10 +34,9 @@
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.equalTo;
-
 import static org.neo4j.driver.v1.AuthTokens.basic;
-import static org.neo4j.driver.v1.Values.parameters;
 import static org.neo4j.driver.v1.Values.ofValue;
+import static org.neo4j.driver.v1.Values.parameters;
 
 public class CredentialsIT
 {
@@ -90,7 +89,7 @@ private void enableAuth( String password ) throws Exception
     {
         neo4j.restartServerOnEmptyDatabase( Neo4jSettings.DEFAULT
                 .updateWith( Neo4jSettings.AUTH_ENABLED, "true" )
-                .updateWith( Neo4jSettings.AUTH_FILE, tempDir.newFile( "auth" ).getAbsolutePath() ));
+                .updateWith( Neo4jSettings.DATA_DIR, tempDir.getRoot().getAbsolutePath() ));
 
         Driver setPassword = GraphDatabase.driver( neo4j.address(), new InternalAuthToken(
                 parameters(

driver/src/test/java/org/neo4j/driver/v1/util/Neo4jSettings.java

@@ -27,7 +27,7 @@
 public class Neo4jSettings
 {
     public static final String AUTH_ENABLED = "dbms.security.auth_enabled";
-    public static final String AUTH_FILE = "unsupported.dbms.security.auth_store.location";
+    public static final String DATA_DIR = "dbms.directories.data";
 
     private static final String TLS_CERT_KEY = "dbms.security.tls_certificate_file";
     private static final String TLS_KEY_KEY = "dbms.security.tls_key_file";