Leverage ruby more in new network link test recipes.
bugfix for new headnodes not including themselves
Merge pull request #146 from pchandra/headcount

Fix for new headnodes not including themselves
Abstract out some mirror settings to permit overrides in env.
Merge pull request #139 from bloomberg/network-test

Leverage ruby more in new network link test recipes.
my mistake, there are still issues, will re-enable when fixed
Disable libvirt_inject_partition as that doesn't work with rbd.
initial pass at anycast support across headnodes
routing fixes for hypervisor's via mgmt and VMs via float net
enable ospf routes on all worker nodes too
rearranging order of some rules for clarity
remove stale routes before adding new ones