v1.1.6

Adds ability to return a fully qualified version of a flattened list.

Usage:

Model::orderBy('parent_id')->get()->nest()->setIndent(' > ')->listsFlattenedQualified();

Example:

    '22' => 'Item 1 Title',
    '10' => 'Item 1 Title > Child 1 Title',
    '17' => 'Item 1 Title > Child 2 Title',
    '14' => 'Item 2 Title',