Add get-vm-ip tool.
Message user that vm may not be fully booted yet.
Bump bootstrap memory to 1.5G

Current devstack uses 800MB immediately, and grows with usage.
Add a script to set up dependencies:

- Install apt dependencies
- Configure virsh group-pickiness
- Complain if ssh keys aren't setup correctly.
- Update notes.md
adding more images

adding more images in their original format (.dia and .odp)
and removing the generated .svg files.
Replace non-existent 'log_info' with 'echo'.