Fix LDAP Extended Query example.

The old one was not valid LDAP filter syntax.
Improve Authentication Containers examples.

* The first example was wrong (cf. ldap_backed() in auth.inc which
  looks for a DC= part to determine a full DN.
* The second example now show the realtive DNs.
Don't gettext() the example strings.

They must not be translated.
Fix parsing of the rule number in the pf log on FreeBSD 10.x, part of Bug #2122
Add an option to restore default logout/error/portal custom pages on Captive Portal. Fixes #3362
Properly detect if an ip is already configured for VIP. Remove useless checks for carp
Make scripts able to react when called from FCGI with GET method
Remove a probably bad copy/paste line
Switch to php-fpm for lighty and check_reload_status will use it. Step by step will migrate the other calls
Use system ident rather than php-fpm for system logs
Remove deprecated sysctls. vfs.forcesync needs to be seen if the patch needs to be put in place again!
Mute the output of the command since its not really useful
Call all php scripts in bootup with fcgicli. For rc.bootup only the part needing input needs to be abstracted
Send events to check_reload_status for carp master/backup
Support if called from fastcgi
Use events to start sshd rather than relying on forking
Use same value consistently for configuration and tolerate a bit more
Rely on memory rather than LOWMEM boolean
Register a function to unset certain globals after requests finish processing to release memory early
Fix saving of voucher sync settings.