adding force_config_drive option
Implement standalone network node class

Implements a standalone network node class.  A standalone network
node runs Quantum services such as a DHCP agent, L3 agent,
and/or OVS agent but does not run nova-compute (and therefore
does not house tenant/admin instances).

https://blueprints.launchpad.net/openstack-cisco/+spec/multi-dhcp-agent

Implements: blueprint bp/multi-dhcp-agent
Clean up whitespace/add missing ovs_local_ip logic
Use the default nova driver for n1k so quantum security groups dont kick in with iptables.
Modifications from code review

Set tunnel_ip to internal_ip by default in network node definition.

Set control class's quantum agent params to true rather than $true.
Add comments showing how to disable agents

Added comments showing how to enable/disable agents on
compute and control nodes.
fix assignment
Revert accidental commit "fix assignment"

This reverts commit bbd9e2bf19d675cf2beae156a1014f0848e14412.
fix assignment
Add support for booting specific kernel

Adds support for installing a user-specified kernel package
and setting it to be booted by default.  This satisfies the
ask from the Nexus 1000v team to be able to run a particular
kernel on compute/control nodes so that nodes are known to be
running a kernel that is compatible with Nexus 1000v kernel
modules.

Implements: bp/nagchund
Fix deprecation warnings
change default_gateway to node_gateway to match site.pp
Merge pull request #136 from pkilambi/multi-node

Use the default nova driver for n1k so quantum security groups dont kickin with iptables
Merge pull request #140 from CiscoSystems/bp/nagchund

Add support for booting specific kernel
fixing variable syntax issue
fixing variable syntax issue
Merge pull request #143 from pkilambi/multi-node

fixing variable syntax issue
Merge pull request #139 from rakshithh/force_config_drive

adding force_config_drive option
Merge pull request #135 from CiscoSystems/bp/multi-dhcp-agent-squash

Implement standalone network node class
pass appropriate security group api setting for computes nodes. We already have this for the controller.