Fix test tearDown() methods
Rename libvirt xml template
Create a dedicated network bridge

Create a dedicated network bridge for all the guests to connect
to to isolate them from the default libvirt bridge.
Move the retrieval of the DHCP lease information to the virt class
Fix tox python3 issues
Update the hard-coded config settings
Silence pylint warnings
Add run and tgz Makefile targets
Add more logging
Ignore unicode conversion errors in the console log
Reraise caught Bottle exceptions
Add server 'start' and 'stop' actions
Fix DHCP lease range
Fix server 'reboot' action

Poll the state of the server after issuing the shutdown request and
if the server didn't shut down within a set time, issue a new hard
shutdown request.