Add conf-file option.

Luci add custom.conf
Bugfix for timer
Update address matching.

package/openwrt/custom.conf

@@ -0,0 +1,11 @@
+# Add custom settings here.
+
+# set log level
+# log-level [level], level=error, warn, info, debug
+# log-level error
+
+# log-size k,m,g
+# log-size 128k
+
+# log-file /var/log/smartdns.log
+# log-num 2