Grunt dist task failing with invalid theme-ios css
I feel like I'm missing something obvious here, as I can't find anyone else with this issue.

After cloning the repo and running `npm install`, `grunt dist` is failing with the following error:

``` shell
$ grunt dist
Running "clean:dist" (clean) task
Cleaning dist/...OK
Cleaning docs/dist/...OK

Running "sass:dist" (sass) task
Syntax error: Invalid CSS after "...olor:  #007aff ": expected selector or at-rule, was "!global;"
        on line 16 of sass/theme-ios.scss
  Use --trace for backtrace.
Warning: Exited with error code 1 Use --force to continue.

Aborted due to warnings.
```

Am I missing a step in the build process?
