(cherry picked from commit ea6b5bda)

The day has come that this "bootstrap" logic broke horribly,
preventing us from upgrading to PHP 7.1 with the initial 17.7.

Add a config_read_array() function that emulates *all* potentially
required steps and grabs the array reference so that the code can
be migrated easily.

Hopefully this also works on PHP 7.0.  ;)

(cherry picked from commit 4c179c23)

(cherry picked from commit ac40e521)

PR: https://forum.opnsense.org/index.php?topic=5307.0
(cherry picked from commit 7681a291)

PR: https://github.com/opnsense/core/issues/1727
(cherry picked from commit 36f0ff51)

(cherry picked from commit 7e7af55d)
(cherry picked from commit 70253d94)
(cherry picked from commit 0502860e)
(cherry picked from commit 386ea4f4)
(cherry picked from commit 5198b7d4)
(cherry picked from commit b73c0e7d)
(cherry picked from commit 4f88f025)
(cherry picked from commit 650254c1)
(cherry picked from commit e9f999d0)
(cherry picked from commit 5f5e438f)
(cherry picked from commit 5daf7785)
(cherry picked from commit f83f556a)
(cherry picked from commit 39710372)
(cherry picked from commit 321c46c4)
(cherry picked from commit 6a745665)
(cherry picked from commit c985c5d5)
(cherry picked from commit d80cb40a)
(cherry picked from commit 29899040)
(cherry picked from commit ebdc35c5)
(cherry picked from commit 951ea35c)
(cherry picked from commit 93072dd8)
(cherry picked from commit a42e3b68)

If style of header is not set in form xml, then PHP Notice appeared in log:
PHP Notice: Undefined index: style in ......
(cherry picked from commit af7d099f)

PR: https://github.com/opnsense/core/issues/1709
PR: https://github.com/opnsense/core/issues/1710

(cherry picked from commit 093895e3)
(cherry picked from commit cebc6c7e)
(cherry picked from commit e5e914c9)
(cherry picked from commit 4ff07cad)
(cherry picked from commit 576799a1)
(cherry picked from commit 8236ddcc)
(cherry picked from commit 5525a08a)
(cherry picked from commit 46c460bb)

PR: https://forum.opnsense.org/index.php?topic=5466.0

(cherry picked from commit 20ec899a)
(cherry picked from commit 865b2731)

(cherry picked from commit 1b970b37)

(cherry picked from commit d2ab500a)

(cherry picked from commit 218b37df)

(cherry picked from commit 81eeab65)

(cherry picked from commit 76eb058d)
(cherry picked from commit 749ef5cd)
(cherry picked from commit 04f9fd64)

We are forcing a change through the installer, which is where
the majority starts from.  We don't want to enforce a change
twice.

We can't really see if we installed or went through a factory
reset, so this is (was) the best of both worlds in conjunction
with the new installer feature.

While here, annotate that it is possible to leave it "empty".

This reverts commit 5eb2c986.

(cherry picked from commit 9cf6655b)

(cherry picked from commit 5cb149d7)

PR: https://github.com/opnsense/core/issues/1714
(cherry picked from commit 738f9983)

(cherry picked from commit 77401d6a)

(cherry picked from commit 286bbf65)

(cherry picked from commit f20f0c91)
(cherry picked from commit fa047498)

(cherry picked from commit cbc2292f)

This is a shell script to make recovery as recoverable as
possible, now with a clear license and the ability to apply
inline or reboot for a clean configuration cycle.

error: setsockopt(..., SO_RCVBUF, ...) failed: No buffer space available

In the longrun all macro entries should go, but for now a replace should be sufficient.

ipsec, cleanup non-functional nat before ipsec logic and ui for 17.7. In case the feature will reemerge at some point, it would be better to move it to the firewall section anyway. for reference about this long standing issue see https://github.com/opnsense/core/issues/440

This reverts commit c4628a0b.
It looks like pkg can't handle php70 to php71 at all.