Attempt to resolve pcap-format error for OPAM 1.1 on Travis
mDNS does not use SOA records (quick fix)
mDNS: multi-question, don't echo questions, no SOA
First OUnit tests for Dns.Trie.lookup
Test examples of NXDomain, Delegated, NoError
First test for Dns.Query.answer
Add mDNS test cases for Dns.Query
Fix duplication of additional RRs for Q_PTR
Remove unnecessary escape sequence
Merge branch 'mdns' of github.com:infidel/ocaml-dns into mdns

Conflicts:
	lib/query.ml
	lib_test/ounit/test_query.ml