Fix #5794 remove print_info_box_np chackes for gettext("apply")

1) Get rid of the stristr() checks to "guess" if an apply button should
be used.
2) Change print_info_box() so it can take a button name of "close"
, "apply" or none to decide which button to show.
3) Delete function print_info_box_np_undo() - nothing calls it.
4) Add new function print_apply_box() to provide an easy wrapper for
print_info_box() with the parameters to be 'warning' level and 'apply'
button.
5) Change print_info_box_np() calls to just print_info_box() or
print_apply_box() as appropriate.
There is 1 direct call to print_info_box_np() from vpn_ipsec_mobile.php
remaining. That tries to make a "create" button. It was not working
before this change. It needs to be sorted out and fixed separately.

After this change there is no dependency on a string containing text
like "apply" to make the apply button appear.

Then we can work on re-engineering the internal code of
print_info_box_np() print_info_box() and print_apply_box() to fit
together however we like. It should be easy to preserving the current
API to print_info_box() and print_apply_box().

1 files changed, 3 insertions, 2 deletions

diff --git a/src/usr/local/www/services_dhcpv6.php b/src/usr/local/www/services_dhcpv6.php
index 676927e..cb15605 100644
--- a/src/usr/local/www/services_dhcpv6.php
+++ b/src/usr/local/www/services_dhcpv6.php
@@ -456,7 +456,7 @@ if ($dhcrelay_enabled) {
 }
 
 if (is_subsystem_dirty('staticmaps')) {
-	print_info_box_np(gettext('The static mapping configuration has been changed') . '.<br />' . gettext('You must apply the changes in order for them to take effect.'));
+	print_apply_box(gettext('The static mapping configuration has been changed') . '.<br />' . gettext('You must apply the changes in order for them to take effect.'));
 }
 
 /* active tabs */
@@ -883,7 +883,8 @@ print_info_box(gettext('The DNS servers entered in ') . '<a href="system.php">'
 			   gettext('will be assigned to clients by the DHCP server.') . '<br />' .
 			   gettext('The DHCP lease table can be viewed on the ') . '<a href="status_dhcpv6_leases.php">' .
 			   gettext('Status: DHCPv6 leases') . '</a>' . gettext(' page.'),
-			   'info');
+			   'info',
+			   false);
 ?>
 </div>
 <div class="panel panel-default">