Also
- Add test for clustering without weave.
- Update test template for docker 1.8
- Prefetch images
- Stop all containers when test finishes.
- Add small sleep after weave launch, and supply all the hosts to ensure IPAM works correctly.
- Restructure main funcs for clean defer-stack-unwinds
- Fix Docker container to handle signals properly
- Introduce runsvinit for container init process
- Integration test
