i'm requiring a capabilities.js file with an object to my intern suites so i can specify which environments to use for various tests. here is my default chrome:

```
chrome: {
    browserName: 'chrome',
    chromeOptions: {
      args: [
        // 'start-maximized',
        'window-size=1024x768'
      ]
    }
  }

```

from this i'd expect something like `environments: [caps.chrome]` to open a browser window that is 1024x768. I need to specify window size in a per-environment way. (also, `start-maximized` isn't working- though i do have several mobile emulators set up and doing well).