fixed plugin for ButtonDropdown widget

[cebe]

Q	A
Is bugfix?	yes
New feature?	no
Breaks BC?	not sure
Tests pass?	unsure what to test
Fixed issues	fixes #184

This fixes #184 however I do not see any change in behavior of the button dropdown when I create it like this:

    <?php echo ButtonDropdown::widget([
        'label' => 'Action',
        'dropdown' => [
            'items' => [
                ['label' => 'DropdownA', 'url' => '/'],
                ['label' => 'DropdownB', 'url' => '#'],
            ],
        ],
    ]); ?>

anyone can explain why it worked before and why change is needed? @yukal

[samdark]

@yukal

[samdark]

Found no way to reproduce the issue but according to docs it should be dropdown()...

[samdark]

Merged. Thanks!