Unitech/pm2 — pull request #240 by LoicMahieu (2014-01-02 17:59:22+00:00)
Title: Add ability to specify env variables in JSON

By not overwriting the env object in the JSON, it allow us to specify
env variables directly in the JSON.

Example:
```json
[
{
"name": "my-awesome-app",
"script": "./lib/app.js",
"port": "10000",
"env": {
"NODE_ENV": "production",
"AWESOME_SERVICE_API_TOKEN": "xxx"
}
}
]
```

Typically, I wanted to specify the NODE_ENV and other specific configuration, like keys/token for external services.