Add path argument to `Resolv_conf in Dns_resolver.config
Convert first-class RESOLVER module to record type
whitespace
Fix mldig server and port options

mldig now respects nameservers from the command line in both IP and domain
formats (resolved with default resolver). -p now uses that port for the custom
server lookup
CHANGES
Merge master
mldig should query for the domain as entered
Make `Packet.string_to_q_type` total without exception
Print root dot in mldig
Change shift operators to have | in the middle to disambiguate with camlp4 quotes
Fix decompression triple pointer ordering bug
Canonical keys are lowercase
Merge pull request #6 from dsheets/resolver

Fix mldig