flynn/flynn — pull request #422 by lmars (2014-11-11 04:01:01+00:00)
Title: Avoid duplicate releases

This adds a version manifest matching commits to versions and checks that before doing the release.

The manifest also includes a `current` object which is the current release for convenience.

For example:

```json
{
"current": {
"version": "20141103.0",
"commit": "51075aa45801a395d34a631c6d61c588"
},
"versions": [
{
"version": "20141103.0",
"commit": "51075aa45801a395d34a631c6d61c588"
},
{
"version": "20141102.0",
"commit": "3eec6a22e2add1f5ea41c0555cfdd90e"
},
{
"version": "20141101.0",
"commit": "185e0f6b95fff32cad965c932e1b90ec"
}
]
}
```