made security.acl.dbal.connection public for use in acl:init

src/Symfony/Bundle/FrameworkBundle/Resources/config/security_acl.xml

@@ -26,7 +26,7 @@
     </parameters>
 
     <services>
-        <service id="security.acl.dbal.connection" alias="doctrine.dbal.default_connection" public="false" />
+        <service id="security.acl.dbal.connection" alias="doctrine.dbal.default_connection" />
     
         <service id="security.acl.object_identity_retrieval_strategy" class="%security.acl.object_identity_retrieval_strategy.class%" public="false"></service>
         
@@ -76,4 +76,4 @@
             <tag name="security.voter" />
         </service>
     </services>
-</container>
+</container>