adblock: release 3.8.0

* add support for 'DNS File Reset', where the final DNS blockfile
  will be purged after DNS backend loading (save storage space).
  A small background service will be started to trace/handle
  dns backend reloads/restarts
* add support for the 'null' blocking variant in dnsmasq
  (via addn-hosts), which may provide better response times
  in dnsmasq
* enhance the report & search engine to support
  the new blocking variants. Search now includes
  backups & black-/whitelist as well
* compressed source list backups are now mandatory (default to '/tmp')
* speed up TLD compression
* E-Mail notification setup is now integrated in UCI/LuCI
* update the LuCI frontend to reflect all changes (separate PR)
* drop preliminary dnscrypt-proxy-support (use dnsmasq instead)
* drop additional 'dnsjail' blocklist support (not used by anyone)
* procd cleanups in init
* various shellcheck cleanups
* update readme

Signed-off-by: Dirk Brenken <dev@brenken.org>
(cherry picked from commit 504412ccdb)

net/adblock/files/adblock.conf

@@ -1,16 +1,17 @@
 
 config adblock 'global'
+	option adb_basever '3.8'
 	option adb_enabled '0'
 	option adb_dns 'dnsmasq'
+	option adb_dnsvariant 'nxdomain'
 	option adb_fetchutil 'uclient-fetch'
 	option adb_trigger 'wan'
 
 config adblock 'extra'
 	option adb_debug '0'
 	option adb_forcedns '0'
-	option adb_backup '0'
 	option adb_report '0'
-	option adb_maxqueue '8'
+	option adb_maxqueue '4'
 
 config source 'adaway'
 	option adb_src 'https://adaway.org/hosts.txt'
@@ -30,12 +31,6 @@ config source 'bitcoin'
 	option adb_src_desc 'focus on malicious bitcoin mining sites, infrequent updates, approx. 80 entries'
 	option enabled '0'
 
-config source 'blacklist'
-	option adb_src '/etc/adblock/adblock.blacklist'
-	option adb_src_rset '/^([[:alnum:]_-]+\.)+[[:alpha:]]+([[:space:]]|$)/{print tolower(\$1)}'
-	option adb_src_desc 'static local domain blacklist, always deny these domains'
-	option enabled '1'
-
 config source 'disconnect'
 	option adb_src 'https://s3.amazonaws.com/lists.disconnect.me/simple_malvertising.txt'
 	option adb_src_rset '/^([[:alnum:]_-]+\.)+[[:alpha:]]+([[:space:]]|$)/{print tolower(\$1)}'