adblock: update 4.0.7

* fix aria2c download options
* fix report engine with empty domains
* fix safesearch ips of safe.duckduckgo.com (get ips dynamically)
* fix safesearch ips of safesearch.pixabay.com (get ips dynamically)
* add regional blocklist for italy
* shellcheck adjustments
* add test.sh for CI testing

Signed-off-by: Dirk Brenken <dev@brenken.org>
(cherry picked from commit d36fd57662)

net/adblock/files/adblock.init

@@ -2,16 +2,20 @@
 # Copyright (c) 2015-2020 Dirk Brenken (dev@brenken.org)
 # This is free software, licensed under the GNU General Public License v3.
 
+# set (s)hellcheck exceptions
+# shellcheck disable=1091,2010,2016,2034,2039,2059,2086,2091,2129,2143,2154,2181,2183,2188
+
 START=30
 USE_PROCD=1
 
-EXTRA_COMMANDS="suspend resume query report list timer status_service"
+EXTRA_COMMANDS="suspend resume query report list timer status_service version"
 EXTRA_HELP="	suspend	Suspend adblock processing
 	resume	Resume adblock processing
 	query	<domain> Query active blocklists and backups for a specific domain
 	report	[<search>] Print DNS statistics with an optional search parameter
 	list	[[<add>|<remove>] [source(s)]] List available adblock sources or add/remove them from config
-	timer	<action> <hour> [<minute>] [<weekday>] Set a cron based update interval"
+	timer	<action> <hour> [<minute>] [<weekday>] Set a cron based update interval
+	version	print version information"
 
 adb_init="/etc/init.d/adblock"
 adb_script="/usr/bin/adblock.sh"
@@ -25,6 +29,11 @@ then
 	exit 0
 fi
 
+version()
+{
+	rc_procd "${adb_script}" version
+}
+
 boot()
 {
 	[ -s "${adb_pidfile}" ] && > "${adb_pidfile}"