Merge pull request #46 from retr0h/working

Added rabbit user/pass to nova.conf
Add toggle for PKI signing_dir

* Adds enabled and signing_dir attributes, under pki section
* Updates README for new attributes
missing = sign
Merge pull request #47 from jaypipes/working

Add toggle for PKI signing_dir
service_pass bug
Merge pull request #48 from jaypipes/working

service_pass bug
Merge pull request #49 from retr0h/working

Added a rabbit virtualhost
Integrated keystone with opentack-common's PKI toggling