Fix for SEC-189. Added getter for initialDirContextFactory.

core/src/main/java/org/acegisecurity/providers/ldap/populator/DefaultLdapAuthoritiesPopulator.java

@@ -290,6 +290,10 @@ public class DefaultLdapAuthoritiesPopulator implements LdapAuthoritiesPopulator
         }
     }
 
+    protected InitialDirContextFactory getInitialDirContextFactory() {
+        return initialDirContextFactory;
+    }
+
     protected String[] getUserRoleAttributes() {
         return userRoleAttributes;
     }