This reverts commit cd379a8f.

Looks like this isn't entirely correct: as long as the packages is
not upgraded we can see normal package upgrades alongside pkg reinstall.
Maybe this is new since 1.10?  In any case, yay for less code.

Setting locale in ApiControllerBase

In the end, it's better to check if the key exists, although it
always should, that's what the key is for....

Looks like this name isn't displayed or otherwise used, but
for the sake of consistency fix the typo.

get_std_save_message() should be removed eventually, there are only a
few callers left.  Out of lack of imagintion, just fix the apparent
issue and remove the attached filter/firewall message that doesn't
really work because it does not look for "firewall" in the script name.

* fix translations in traffic shaper

* translation IDS and Proxy

* translate dialog titles; closes #1546
* Some additional strings reported by @DokuKaefer

firewall, work in progress,  refactor gateway logic, only extends new plugin -> filterrule classes, doesn't change the internals yet.

gwlb, found the use... https://github.com/opnsense/core/commit/2dbc3ab259cb7b141d1900b8dea8a503d17ddf72

We previously achieved what we wanted anyway: move all callers
to a single file exclusively dealing with unbound.

There is still some glue in the product info that is irrelevant
to the product.  Will be removed eventually.

It may help users to find what they think are "packages", but
for consistency reasons was recoined as "plugins".

php7.1, Error at /usr/local/opnsense/www/api.php:26 - Invalid callback OPNsense\Core\Api\MenuController::afterexecuteroute, cannot access protected method OPNsense\Core\Api\MenuController::afterExecuteRoute() (errno=2)