[MODEL] Added `client.cluster.health wait_for_status: 'yellow'` to prevent "no shard available" errors on CI
[RAILS] Fixed the 01 and 02 templates on Rails 3.2.x

Related: #73
[TESTS] Added dependency on "minitest" to prevent test failures

All the thanks goes to https://github.com/theforeman/smart-proxy/pull/84