Extends Bootstrap list group with nesting and quick add link. Works best as sidebar navigation.
Example
<div class="list-group list-group-nested">
<a href="#" class="list-group-item active"><h4 class="list-group-item-heading">Pages</h4></a>
<a href="#" class="list-group-add" title="Create new item"><span class="glyphicon glyphicon-plus-sign offset-right" aria-hidden="true"></span></a>
<a href="#" class="list-group-item list-group-item-nested">Home</a>
<a href="#" class="list-group-item list-group-item-nested">Products</a>
<a href="#" class="list-group-item list-group-item-nested">About</a>
<a href="#" class="list-group-item"><h4 class="list-group-item-heading">Articles</h4></a>
<a href="#" class="list-group-add" title="Create new item"><span class="glyphicon glyphicon-plus-sign offset-right" aria-hidden="true"></span></a>
<a href="#" class="list-group-item"><h4 class="list-group-item-heading">Settings</h4></a>
</div>