Add test for hooks
Merge pull request #23 from square/ptseng/hooktest

Add test for hooks
Fix errors in p2-bin2pod, add config option
Use correct runit errors
Document pod.Launch()
Only halt vagrant VM on success
Ensure that each test reinstalls the preparer
pass manifests to install, launch
Use ID() getter for manifests
Check for nil current manifests
Add preparer tests
use hooks
fix config filename in test
fix hooks tests