symlink database.yml
add unicorn settings for production
Merge branch 'feature/unicorn_and_deploy_config' into develop

* feature/unicorn_and_deploy_config:
  add unicorn settings for production
  symlink database.yml
Merge branch 'release/v0.2.0'

* release/v0.2.0:
  add unicorn settings for production
  symlink database.yml