* limit firewall hotplug trigger to certain wan 'INTERFACE' as well,
  to prevent possible race conditions during boot

Signed-off-by: Dirk Brenken <dev@brenken.org>

* fix a logical glitch in the hotplug event handler
* properly handle fatal iptables errors - even in subshells

Signed-off-by: Dirk Brenken <dev@brenken.org>

* remove 'http-only' mode, all sources are now fetched from https sites
* the backup mode is now mandatory ('/tmp' is the default backup
  directory), always create and re-use backups if available.
  To force a re-download take the 'reload' action.
* support 'sshd' in addition to 'dropbear' for logfile parsing
  to detect break-in events
* always update the black-/whitelist with logfile parsing results
  in 'refresh' mode (no new downloads)
* rework the return code handling
* tweak procd trigger
* various small fixes
* (s)hellsheck cosmetics

Signed-off-by: Dirk Brenken <dev@brenken.org>

* support multiple WAN interfaces in iptables rules,
  set 'ban_iface' option accordingly (as space separated list)
  or use the LuCI frontend
* add new "refresh" mode while triggered by fw changes (no download)
* add required ip dependency
* fix wrong 'settype' definition for firehol1 in config

Signed-off-by: Dirk Brenken <dev@brenken.org>

a new script based package called "banIP" to block
incoming & outgoing ip adresses/subnets via ipset.

Features:
* a shell script which uses ipset and iptables
  to ban a large number of IP addresses
  published in various IP blacklists (bogon, firehol etc.)
* support blocking by ASN numbers
* support blocking by iso country codes
* support local white & blacklist (IPv4, IPv6 & CIDR notation)
* auto-add unsuccessful ssh login attempts to local blacklist
* auto-add the uplink subnet to local whitelist
* per source configuration of SRC (incoming) and DST (outgoing)
* supports IPv4 & IPv6

Strong LuCI support:
* easy interface to track & change all aspects of your ipset
  configuration on the fly
* integrated IPSet-Lookup
* integrated RIPE-Lookup
* Log-Viewer & online configuration of white- & blacklist

LuCI-Screenshots will follow in the second post.
Forum discussion:
https://forum.openwrt.org/t/banip-new-project-needs-testers-feedback/16985

Signed-off-by: Dirk Brenken <dev@brenken.org>