Currently we are using Shaker version 0.0.10, however version 0.0.14
has more network tests including ping, tcp bidirectional and also
has a slick format for printing reports for tests with varying
concurrencies.
Moreover, we intend to use the json output from this version to index
shaker results in elastic search through a future commit.
+ Adding dns options
+ Patching validator to check for dns_nameserver key
+ Removing dns option, to be pushed when the pypi package includes
the change
Change-Id: I522d1c78e7cacda3763f326f5e7dfa53e4ada1a8
e76b8acb4b