feat(divider): add implementation of the divider component

This pull request adds an implementation of the "divider" component which groups and separates content within lists and page layouts using strong visual and spatial distinctions. Demos, docs and a small test suite accompany the implementation.

Closes #194
Yes. It's a type heading. I'll do some work to fix that up. Thanks for
catching that!

On Tue, Sep 9, 2014 at 1:49 PM, Marcy Sutton <notifications@github.com>
wrote:

> In src/components/divider/demo1/index.html:
>
> > +            </p>
> > +          </div>
> > +        </material-item-content>
> > +        <material-divider inset ng-if="!$last"></material-divider>
> > +      </material-item>
> > +    </material-list>
> > +  </material-content>
> > +
> > +  <material-toolbar class="material-theme-light">
> > +    <h1 class="material-toolbar-tools">
> > +      <span>Inset with Subheader</span>
> > +    </h1>
> > +  </material-toolbar>
> > +
> > +  <material-content>
> > +    <material-divider inset class="first">Folders</material-divider>
>
> What is the intent of the text inside of material-divider? It seems like
> it should be a heading, but the heading level depends on the surrounding
> content. For example, in this demo, Folders should be an h2 with the
> material-item-content headings changed to h3 and h4 so they create a
> content hierarchy.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/angular/material/pull/250/files#r17316222>.
>



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