CRITICAL: When configuring a Phase 2 tunnel and setting P2 protocol to ESP, this setting is ignored. The GUI will show an empty value for P2 protocol and the ipsec.conf will not contain the required "esp" line.

Reported by: @lattera
Reviewed by: @AdSchellevis

(os-update was renamed to opnsense-update.)

(spam, spam, spam, spam...)

Submitted by: @fabianfrz, @DokuKaefer

Also adds a custom user agent to make it easier to filter by version
and moves the crash reporter to a more visible location in the system
category.  :)

(legacy) crashreport PHP Warning:  in_array() expects parameter 2 to be array, null given in /usr/local/www/services_dhcpv6_relay.php on line 162

(legacy) fix crashreport PHP Warning:  substr_count(): Empty substring in /usr/local/www/services_ntpd.php on line 290

Spotted by: @fabianfrz