added unbound to external deps

external/unbound/contrib/warmup.cmd

@@ -0,0 +1,68 @@
+@echo off
+
+rem --------------------------------------------------------------
+rem -- Warm up DNS cache script by your own MRU domains
+rem --
+rem -- Version 1.0
+rem -- By Yuri Voinov (c) 2014
+rem --------------------------------------------------------------
+
+rem Check dig installed
+for /f "delims=" %%a in ('where dig') do @set dig=%%a
+if /I "%dig%"=="" echo Dig not found. If installed, add path to PATH environment variable. & exit 1
+echo Dig found: %dig%
+
+echo Warming up cache by MRU domains...
+rem dig -f my_domains 1>nul 2>nul
+rem echo Done.
+
+for %%a in (
+mail.ru
+my.mail.ru
+mra.mail.ru
+agent.mail.ru
+news.mail.ru
+icq.com
+lenta.ru
+gazeta.ru
+peerbet.ru
+www.opennet.ru
+snob.ru
+artlebedev.ru
+mail.google.com
+translate.google.com
+drive.google.com
+google.com
+google.kz
+drive.google.com
+blogspot.com
+farmanager.com
+forum.farmanager.com
+plugring.farmanager.com
+symantec.com
+symantecliveupdate.com
+shalla.de
+torstatus.blutmagie.de
+torproject.org
+dnscrypt.org
+unbound.net
+getsharex.com
+skype.com
+vlc.org
+aimp.ru
+mozilla.org
+libreoffice.org
+piriform.com
+raidcall.com
+nvidia.com
+intel.com
+microsoft.com
+windowsupdate.com
+ru.wikipedia.org
+www.bbc.co.uk
+tengrinews.kz
+) do "%dig%" %%a 1>nul 2>nul
+
+echo Saving cache...
+unbound_cache.cmd -s
+echo Done.