On /etc/resolv.conf of d-bus update of servers, dnsmasq did not update
dnsmasq_daemon->serverarray properly. Call refresh after each change.
When resolv.conf resolvers are cleared, dnsmasq_daemon->serverarray
were not properly refreshed. Force refresh as part of removal.
Replaces original upstream commit, which fixed only some use-cases:
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=d290630d31f4517ab26392d00753d1397f9a4114
Resolves: rhbz#2009975
Related: rhbz#2014019
