SC5/sc5-styleguide — pull request #343 by aslansky (2014-12-10 14:35:35+00:00)
Title: fixes failed styleguide generation when section modifier has no markup

If a section had modifiers without markup like:
```
// The standard call to action button
//
// :hover - Subtle hover highlight.
// :active - Active state of the button
// .disabled - Dims the button to indicate it cannot be used.
// [disabled] - Dims the button to indicate it cannot be used.
// .icon-only - Hides text of button
//
// Styleguide 2.0
```

The styleguide generation failed with:
TypeError: Cannot call method 'indexOf' of null