fix settings for server setup to not require DNS
create the ou's and cn's needed for keystone integration
adding dependency for keystone with ldap
switch keystone to use LDAP backend
add description for admin tenancy since ldap requires it
remove unused default groups
keep phpldapadmin pointed at local ldap
cleaning up ldap server
only initialize the local ldap once at creation time
disable anonymous bind to ldap
Merge pull request #253 from pchandra/ldap

Enable LDAP as a Keystone backend
setup zookeeper on headnodes
setup cassandra on headnodes
setup redis on headnodes
get contrail up and running
replace nova-network with neutron