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
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