First stable release

This initial release supports the following config array

$this->addBehavior('Multiselect.Multiselect', [
    'featured' => [
        'state' => true, 
        'scope' => ['author_id'],
        'limit' => 2,
        'order' => [
            'approved' => 'ASC',
            'modified' => 'ASC',
        ],
    ],
]);