How to Setup Username and Password for MongoDB in config.js within boot Directory
Hi,

I'm just setting up Eskimo for the first time and I am wondering how exactly to configure a credential required connection to MongoDB? I can't seem to get it figured out exactly.

I have tried this:

```
  mongo: {
    host: 'localhost',
    port: 27017,
    opts: {
      user: 'testuser',
      password: 'testpassw0rd'
    },
    // faster - don't perform 2nd request to verify
    // log message was received/saved
    safe: false
  },
```

AND

I have tried this:

```
development: {
  cache: true,
  url: 'http://localhost:9004',
  server: {
    env: 'development',
    port: 9004,
  },
  mongo: {
    dbname: 'testdb',
    db: 'testdb',
    user: 'testuser',
    password: 'testpassw0rd'
  },
  knex: {
    debug: true,
    connection: {
      host: '127.0.0.1',
      user: 'root',
      password: '',
      database: 'igloo_development'
    }
  },
  redis: {
    prefix: 'igloo-development'
  }
},
```

I have looked through the documentation, through the examples, and also through the issues here. I just can't seem to find an example.

Help would be greatly appreciated! Thank you.
