Add Riak and kernel tuning.
Replace supervisord with boot.sh.
Replace Pipework with Docker 0.6.5+ container linking.
Explicitly use Ubuntu 12.04 as the base image.
Install Riak via a direct download.
Make Riak configuration changes a one-liner.
Make dependency installation a one-liner.
Standardize Makefile.
Update test-cluster command to member-status.
Update README.
Update CHANGELOG.
Add note about forwarding port range for boot2docker.
Fixes to appease shellcheck.
Remove unnecessary cd before installation.
Set DEBIAN_FRONTEND to noninteractive before package installation.
Make Riak's data directory a Docker volume.
Utilize Docker's port subcommand instead of parsing inspect.
Merge pull request #5 from hectcastro/feature/docker-links

Replace Pipework with Docker 0.6.5+ container linking.