Update rootwrap configuration

Folsom.2 apparently changes the rootwrap model in quantum. this
changes to the new model.

https://bugs.launchpad.net/openstack-cisco/+bug/1130564
Add sudoers update

Need to add sudoers permissions with rootwrap
Remove '-e' from echo command
Ensure /etc/quantum is restricted

User quantum, group root, no world
Fix permissions

User needs to be able to read: root.quantum 750
Don't need to modify sudoers file

It's included in the package quantum-common
Change permissions on quantum.conf

Root owns the file, quantum can read
Merge pull request #1 from robertstarmer/folsom

Update rootwrap configuration bug:1130564