Splits coverage testing from other tests

Also uses unittest2 instead of testtools. unittest2 only works for
python 2 and causes the dependencies to be different between py2 and py3.
Adds coverage tox env to travis config
Re-adds FQDN to server and vs details command
Merge pull request #451 from sudorandom/add-fqdn-details

Add fqdn to detail commands
Merge pull request #450 from sudorandom/testing-updates

Splits coverage testing from other tests