(interfaces.inc) cleanup interface_proxyarp_configure and actually use provided pid, closes https://github.com/opnsense/core/issues/981

(cherry picked from commit 6e4b9c4f)

(ids) add option to drop/reset suricata log file (eve.json*), closes https://github.com/opnsense/core/issues/997

(cherry picked from commit 40e4bdc2)
(cherry picked from commit 8de70201)

(cherry picked from commit 5402a89a)

o Allow to delete WAN, LAN is worse :P
o Zap spurious 4th column
o Shorten assign text prompt
o remove margianlly helpful message

(cherry picked from commit 39406886)

(cherry picked from commit bf745dea)

(cherry picked from commit d4d27c14)

(cherry picked from commit 44cd7aee)

(cherry picked from commit 65f074b6)

LAST TIME THIS WILL BE MOVED LIKE EVER. :P

(cherry picked from commit 05e52517)

fix hook_stacked_form_tables (mobile), do not copy id tags. There still is some old javascript code which breaks.

(cherry picked from commit 6ffc213c)

(Network insight) extend help text, not supported when using RAM disk. closes https://github.com/opnsense/core/issues/999

(cherry picked from commit dc3ad76b)

(cherry picked from commit 9f801be9)

(cherry picked from commit 68fd7aec)

PR: https://forum.opnsense.org/index.php?topic=3137.0
(cherry picked from commit acbd63db)

(cherry picked from commit 93de08bd)

Spotted by: @fabianfrz

(cherry picked from commit 3953f4fc)

(cherry picked from commit 50c1d95a)
(cherry picked from commit 82e674f7)
(cherry picked from commit 0e792483)
(cherry picked from commit 123e68c3)

(interfaces/dhcpv6 client) add debug option to advanced dhcpv6 client config, closes https://github.com/opnsense/core/issues/859

(cherry picked from commit 91756d81)

(cherry picked from commit 7077a7c7)
(cherry picked from commit cd3a1b3e)
(cherry picked from commit 5faaa75a)
(cherry picked from commit ef34f1a2)
(cherry picked from commit 9f6112a5)
(cherry picked from commit 95cb2f9d)
(cherry picked from commit 8d10efac)

Requires fiddling with /etc/fstab, at least that is a file
that we never touch.  It's harder for installs that need
TRIM to be off all the time as the first boot does actually
enable it.  That means after the install is complete it needs
to be CTRL+C'ed and the fstab entry modified before reboot.

PR: https://forum.opnsense.org/index.php?topic=3044
(cherry picked from commit 68d539af)

system_staticroutes_configure, remove dead code, add rc.newroutedns dependencies and make the optional alias use in static routes explicit with a typeahead

(cherry picked from commit 542480f1)

(cherry picked from commit de5a42e0)

If one deletes "plugins.inc", this way the plugin system can be
disabled.  That's a lot better than removing plugins.inc.d/
content and executing the stubs everytime anyway.

(cherry picked from commit 8371e3b9)
(cherry picked from commit 87066bbe)
(cherry picked from commit 4cb9fe70)

As before, make this a mandatory feature for dhcp chroot in order
to catch problems with the implemenation as early as possible.

(cherry picked from commit 40cfb0da)

Add a test case where it hurts: syslog startup.  :)

(cherry picked from commit ffc17035)

(cherry picked from commit 23abe72a)

(captive portal) add option "drop expired vouchers", closes https://github.com/opnsense/core/issues/977

(cherry picked from commit 85c2b81b)
(cherry picked from commit 38b31f5d)
(cherry picked from commit 74c6a36c)

(cherry picked from commit 29883226)

(cherry picked from commit cf41a413)

(cherry picked from commit 0fcf6157)

(cherry picked from commit f3b34837)

(cherry picked from commit 75eec3cf)

for example, return all active non virtual interfaces:

$interfaces = legacy_config_get_interfaces(array("virtual" => false, "enable" => true));

(cherry picked from commit 2fd3a68d)

While this is a neat milestone, it becomes apparent how convuluted
the code path and interface info polling is.  Looking at it, the
whole interface layer can probably make performance jumps to at least
twice the read or reconfigure speed...

(cherry picked from commit 3f8c0fea)