Location of our Puppet modules has changed now that they are split
from system-config, update documentation accordingly.
Change-Id: I4d4adc5d41f50dd92fbd642ac30f95c327a416b2
Step one in an AFS cell is getting kerberos working. This does not
provide end-to-end KDC management - the realm still needs to be
created by hand.
Change-Id: I891d784d676ab79e7aca9c883dd9e705a30db6e5