adblock: update 1.4.7

adblock: update 1.4.7

Apply adblock update 1.4.5-1.4.7

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
Original commit messages:

adblock: update 1.4.5
* change the default hphosts list source to ad and tracking servers
only, the overall list includes to many false positives
* new optional config parm 'adb_hotplugif' to restrict hotplug support
to a certain wan interface or to disable it at all
* documentation update
* cosmetics

adblock: update 1.4.6
* added a 'window.close()' to adblock landing page to automatically
close any pop-ups that might get loaded with a blocked ad
* simplified dnsmasq check in ap mode

adblock: update 1.4.7
* add a query function to search the active blocklists for a specific
domain (/etc/init.d/adblock query <DOMAIN>)
* fix bug in ap mode/uhttpd port detection
* check general firewall and dnsmasq package dependencies and remove
redundant checks in ap mode