v0.2.1

• Add WORKDIR on all templates #71
• Do not rebuild binaries each time #70
• Add statsd + graphite templates #68
• Add statsd / graphite example
• Introduce component inheritance #67:

applications:
    producer:
        type: python
        volumes:
            .: /app
        after_script: python /app/app.py
        custom:
            pip_modules: [pika==0.9.8]

    worker1:
        after_script: python /app/worker.py
        extends: producer

    worker2:
        after_script: python /app/worker.py
        extends: producer

• Introduce ruby template #66
• Add ruby-on-rails example
• Add SPIP example #65
• Minor fixes #62
• Add custom template support #60