The change moves several tasks around and adds packages to the install
process which were previously assumed to be present on the base OS.
This also updates the lxc-net-bridge template to be more configurable
to address issues where the base OS is more minimal than previously
expected.
Change-Id: I3c8225124a5f18db81259e1d52d0168ef52c3c17
Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>