Support choosing language for the interface

root/etc/e-smith/templates/etc/phplist/config.php/50Options

@@ -1,2 +1,9 @@
 $attachment_repository = '/var/lib/phplist/tmp';
 define("ALLOW_ATTACHMENTS",1);
+{
+  my $lang = $phplist{'Language'} || '';
+  $lang .= ($lang =~ m/\.inc$/) ? '' : '.inc';
+  if ($lang ne '' && -e '/usr/share/phplist/www/texts/' . $lang){
+    $OUT .= '$language_module = ' . $lang . ';';
+  }
+}