Fix race condition in dnsmasq config dir handling

package/gluon-core/files/etc/init.d/gluon-core

+#!/bin/sh /etc/rc.common
+
+START=11
+
+
+start() {
+	mkdir -p /var/gluon/dnsmasq.d
+}

package/gluon-core/files/lib/gluon/upgrade/core/invariant/010-dnsmasq.d

 #!/bin/sh
 
-echo 'conf-dir=/lib/gluon/dnsmasq.d' > /etc/dnsmasq.conf
+echo -e 'conf-dir=/lib/gluon/dnsmasq.d\nconf-dir=/var/gluon/dnsmasq.d' > /etc/dnsmasq.conf

package/gluon-mesh-batman-adv/files/lib/gluon/dnsmasq.d/010-mesh-batman-adv.conf

-/var/gluon/mesh-batman-adv/dnsmasq.conf
\ No newline at end of file

package/gluon-mesh-batman-adv/generate/lib/gluon/odhcp6c.d/010-mesh-batman-adv

@@ -10,12 +10,12 @@ for ns in $RDNSS $RA_DNS; do
 	done
 done > /var/gluon/mesh-batman-adv/dnsmasq.conf.$$
 
-if cmp -s /var/gluon/mesh-batman-adv/dnsmasq.conf.$$ /var/gluon/mesh-batman-adv/dnsmasq.conf; then
+if cmp -s /var/gluon/mesh-batman-adv/dnsmasq.conf.$$ /var/gluon/dnsmasq.d/mesh-batman-adv.conf; then
 	rm /var/gluon/mesh-batman-adv/dnsmasq.conf.$$
 	exit 0
 fi
 
 lock /var/gluon/mesh-batman-adv/dnsmasq.conf.lock
-mv -f /var/gluon/mesh-batman-adv/dnsmasq.conf.$$ /var/gluon/mesh-batman-adv/dnsmasq.conf
+mv -f /var/gluon/mesh-batman-adv/dnsmasq.conf.$$ /var/gluon/dnsmasq.d/mesh-batman-adv.conf
 /etc/init.d/dnsmasq restart
 lock -u /var/gluon/mesh-batman-adv/dnsmasq.conf.lock