modified stack.sh to support RBAC for Janus and Whale. stack.sh will add default policy to keystone for Janus and Whale automatically
Add pre-defined graph for Mcgill and Waterloo node.
Merge pull request #12 from jyericlin/silver

modified stack.sh to support RBAC for Janus and Whale.
Fix for a server name for agent-2 for waterloo node
Merge branch 'silver' of https://github.com/savi-dev/devstack into silver
Delete all pre-defined Graph ML for edge nodes.
setup script for janus.
Support for external configuration when the whale is started. ex)
/etc/whale/whale.conf
Support starting janus and whale.
1. create /etc/janus/janus.conf and uses it for janus
2. create /etc/whale/whale.conf and uses it for whale
3. start janus with janus.conf
4. start whale with whale.conf
Fixes for FlowVisor installation (for FV 1.2.0)
Re-adding running FlowVisor as user 'flowvisor'
Added nova conf seting to use virtIO by default for VM interfaces
Merge branch 'silver' into savi-2.0
remove policies for janus and whale because there are no support
policies in savi-2.0
Merge branch 'savi-2.0' of https://github.com/savi-dev/devstack into savi-2.0
1. Add MANAGEMENT_IP_IFACE and MANAGEMENT_IP_RANCE for run_stack.sh for
specific value for each node.
2. Remove WHALE and JANUS endpoint in openrc
Fixes for Janus configuration shell function
Fixes for FlowVisor installation (for FV 1.2.0)
Re-adding running FlowVisor as user 'flowvisor'
Added nova conf seting to use virtIO by default for VM interfaces
Fix awk string to correctly extract PORT_ID

This one-character change addresses the issue where this script always fails to get the PORT_ID.  The output table looks like this:
 fixed_ips                                                                        | id                                   | tenant_id                        |
| {"subnet_id": "f2fe6ee6-ee3a-4f8d-bc6f-f537cb230319", "ip_address": "10.2.7.1"}  | 0e6c6a53-d8d4-4a0d-be70-330f6961432f | ca07deedf3864058a8e62797d1711733 |

As you can see we need the 7th field, not the 2nd.
Add a login script with a user name, a project name, and a region name.
It requires a password.
Fix type. WHALE_CONF -> $WHALE_CONF
Fix type. WHALE_CONF -> $WHALE_CONF