Only use -latomic with the intended architectures, instead of all of them.

See merge request squid-team/squid!6

Rename d/NEWS.debian to d/NEWS so that it's installed

See merge request squid-team/squid!7

Check upstream gpg signature

See merge request squid-team/squid!8

Fix apparmor dep8 test in lxc

See merge request squid-team/squid!9

This matches what was suggested in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=907106#5

up.

dh_installchangelogs handles d/NEWS or d/<package>.NEWS, but not NEWS.debian.

Add support to d/watch for checking the upstream detached signature using key id
B06884EDB779C89B044E64E3CD6DBF8EF3B17D3E

This reverts commit e36148f6 with the
exception of the d/changelog changes.

Update to upstream version '4.9'
with Debian dir cc2a2792198a294265d71c52989ba64276ef9bf5

DebCI latest error is apparently missing securityfs in the Debian
kernel used for DebCI despite Apparmor being enabled by default
now in Debian.

As a result Apparmor test produces:
test_zz_apparmor (__main__.BasicTest)
Test apparmor ... FAIL

======================================================================
FAIL: test_zz_apparmor (__main__.BasicTest)
Test apparmor
----------------------------------------------------------------------
Traceback (most recent call last):
  File /tmp/autopkgtest-lxc.06l0vu6_/downtmp/build.ruz/src/debian/tests/test-squid.py, line 206, in test_zz_apparmor
    self.assertEquals(ret, expected, result + report)
AssertionError: Got exit code 1, expected 0
Setting /etc/apparmor.d/usr.sbin.squid to enforce mode.

ERROR: Warning: unable to find a suitable fs in /proc/mounts, is it mounted?
Use --subdomainfs to override.

Fixes DebCI current failure when apparmor-utils not installed before squid package is.
There is apparently no Pre-Depends in tests/control to ensure autopkgtest environments are correct.

Update to upstream version '4.8'
with Debian dir 5f430759b1e5be9527e3ce704c1a713722b5739b

Imported from Ubuntu with some minor adjustments.

This reverts commit ed81457b.