Added cassandra as dependency for contrail

This need parameter seeds which is an array of IP of all
cassandra servers - this is only required in case of mult-node
setup.

Note: service discovery may not be able to handle this scenario as this have
multi-node cross dependency (in initial phase).
Added ceph manifests to rjil.

rjil::ceph
  This class Install ceph and does basic configuration,
    which need to be added for both ceph servers and clients

rjil::ceph::mon
  This class setup ceph mon - this only need to be call on ceph mon nodes

rjil::ceph::osd
  This class setup ceph osds.

added ceph health nagios plugin for testing.

Added custom function to convert netmask to cidr.

Added a facter to provide blank or ceph disks, this is used to
  autodetect the hard disks for OSDs.

Added option to autogenerate loopback device disks for testing.

Added appropriate hiera entries in common.yaml.

This profile does below stuffs.

1. Configure ceph system on all storage nodes
2. Configure ceph monitors on subset of storage nodes (minimum 3)
3. Configure ceph osds according to the configurations
  3.a. Configure specific disks per node: in this mode, one need to
        configure all disks per node which supposed to be used as osds.
  3.b. Autodetect: Detect all blank disks which are not in exception list
         and add them as osds
  3.c. Autogenerate: Generate a loopback device with given size ( Minimum 10G is
        required)

Dependancies:

Latest commit to jiocloud/puppet-ceph (c715eb2) (pull request #2) is required
rjil::ntp is required - without ntp, ceph will throw warnings and can cause
intermittent issues in the cluster.
Add Consul support

Add the basic Consul framework and monitor etcd as an example.
Handle consul discovery token in Vagrantfile, too.
Add separate vagrant env for lxc due to network differences
Add a tags argument to be passed on to consul
Add checks for ssh, mysql, haproxy, keystone, etc.
Only trigger consul-reload on systems with Consul
Fix indentation style (tabs vs. spaces)
Give preference to listen_ports for monitoring
Choose better IPs for things
Merge pull request #70 from sorenh/consul

Add Consul support
Merge pull request #76 from bodepd/add_bodepd_user

Add bodepd user and key to all machines
Merge pull request #62 from hkumarmk/contrail_cassandra

Added cassandra as dependency for contrail
Also pass in consul token
Merge pull request #79 from sorenh/consul-token-in-userdata

Also pass in consul token
Commit vbox specific vagrant environment

This commits adds a specific deployment environment
based on vagrant with the virtualbox provider.

It also removes the dan environment which was previously
defining the same environment.
Add data overrides for acceptance test deployments

Add cross data lookups to support openstack deployments.
Add contrail role
Update role specifications

To use the currently functional openstack roles.