Merge branch 'master', remote branch 'upstream/master'
proof-of-concept for nodar using mlab-ns as backend
generalize and clean code
only one 'pipe' subprocess thread
add pdns configuration and setup
include pdns config & resolve-by-mlabns in package
add user-agent to mlab-ns query
update pipeline in gitmodules
remove ndt.nodar
Merge pull request #3 from stephen-soltesz/master

First draft of DONAR-workalike for mlab_utility