(legacy) crashreport PHP Warning:  Illegal string offset 'acls' in /usr/local/www/services_unbound_acls.php on line 59

(cherry picked from commit e76fec29)

(legacy) fix crashreport in_array() expects parameter 2 to be array, null given in /usr/local/www/system_groupmanager_addprivs.php on line 131

(cherry picked from commit 6713d121)

(cherry picked from commit 10a42da4)

(legacy)  fix CARP support for OpenVPN client #569, add missing requires (https://github.com/opnsense/core/pull/569)

(cherry picked from commit 24583893)

(cherry picked from commit 1f7af310)

Plus other tweaks...

(cherry picked from commit c8589ad4)

(cherry picked from commit aeeff61f)

(cherry picked from commit d29b6a49)

(cherry picked from commit ddedb656)

(cherry picked from commit 4b549335)

(cherry picked from commit 8565d988)

(cherry picked from commit 01d91fe3)

(cherry picked from commit 7bce67d4)

This is part of #431, right fix is to use <button/> instead.  We
don't want to extend the code to fix this, it'll introduce more
bugs and strangeness later.  Still a lot to do there, any help is
welcome, the conversion is pretty simple.

(cherry picked from commit e821b018)

(cherry picked from commit 67ecda13)

(cherry picked from commit 187d7ee0)

(legacy) lock portnumbers on protocols other then tcp/udp, closes https://github.com/opnsense/core/issues/542

(cherry picked from commit 1400ea76)

(legacy) Warning: Illegal string offset 'wan' in /usr/local/www/services_dhcpv6.php on line 462 Warning

(cherry picked from commit 4e8484a9)

examples:
display logged in user menu : /api/core/menu/tree
search items (visitable by logged in user): /api/core/menu/search/?q=dhcpv6

(cherry picked from commit faa58ad5)

(cherry picked from commit 8ed4bd88)

(cherry picked from commit e96aa187)

(cherry picked from commit e357d532)

(cherry picked from commit ea42f12f)

(trafficshaper) add match tcp ACK/non-ACK selection, closes https://github.com/opnsense/core/issues/528

(cherry picked from commit edbac06d)

(cherry picked from commit 454e8b3c)

(legacy) add symbol to show rule direction on floating rule, closes https://github.com/opnsense/core/issues/533

(cherry picked from commit 168f87e5)

(legacy) Unable to use commas in advanced DHCP client options https://github.com/opnsense/core/issues/530

(cherry picked from commit dbaf457b)

(cherry picked from commit a8b49250)

(cherry picked from commit 6ba91d07)

(cherry picked from commit 616436a6)

(cherry picked from commit 8be37cbe)

(cherry picked from commit c4beabc6)

(cherry picked from commit 6ea14da0)

(cherry picked from commit 45d10be8)

(cherry picked from commit 1120bbb8)

(cherry picked from commit b57cdb64)

(cherry picked from commit 025c096b)

(legacy) add x509_extensions selection to cert_created, related to https://github.com/opnsense/core/issues/81

(cherry picked from commit 9d6473f5)