more docs in the configs

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@9724 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/autoload_configs/acl.conf.xml

 <configuration name="acl.conf" description="Network Lists">
   <network-lists>
+
     <list name="dl-candidates" default="allow">
       <node type="deny" cidr="10.0.0.0/8"/>
       <node type="deny" cidr="172.16.0.0/12"/>
       <node type="deny" cidr="192.168.0.0/16"/>
     </list>
+
     <list name="rfc1918" default="deny">
       <node type="allow" cidr="10.0.0.0/8"/>
       <node type="allow" cidr="172.16.0.0/12"/>
@@ -19,7 +21,12 @@
     <list name="strict" default="deny">
       <node type="allow" cidr="208.102.123.124/32"/>
     </list>
-
+    <!--
+	This will traverse the directory adding all users 
+	with the cidr= tag to this ACL, when this ACL matches
+	the users variables and params apply as if they 
+	digest authenticated.
+    -->
     <list name="domains" default="deny">
       <node type="allow" domain="$${domain}"/>
     </list>