Add "Listen4" config option

"Listen6" and "Listen4" now do what the name implies and "Listen" listens on
both ipv4 and ipv6 (unless a bind host was set which forces something
different).

This also changes webadmin appropriately.

Thanks to DarthGandalf for the idea and the patch.


git-svn-id: https://znc.svn.sourceforge.net/svnroot/znc/trunk@1816 726aef4b-f618-498e-8847-2d620e286838

modules/www/webadmin/settings.tmpl

@@ -14,6 +14,7 @@
 										<td>Port</td>
 										<td>BindHost</td>
 										<td>SSL</td>
+										<td>IPv4</td>
 										<td>IPv6</td>
 									</tr>
 								</thead>
@@ -24,6 +25,7 @@
 										<td><? VAR Port ?></td>
 										<td><? VAR BindHost DEFAULT=** ?></td>
 										<td><? IF IsSSL ?>True<? ELSE ?>False<? ENDIF ?></td>
+										<td><? IF IsIPV4 ?>True<? ELSE ?>False<? ENDIF ?></td>
 										<td><? IF IsIPV6 ?>True<? ELSE ?>False<? ENDIF ?></td>
 									</tr>
 									<? ENDLOOP ?>