Placeholder of TbInputInline::maskedTextField or TbInputInline::typeAheadField was overwritten by useless code

[hightman]

As the title, there are code such as following in src/widgets/input/TbInputInline.php:

    $this->setPlaceholder();
    $this->htmlOptions['placeholder'] = $this->model->getAttributeLabel($this->attribute);

It harshly overwrite the customized placeholder option.

[hijarian]

Thanks for finding this problem, and especially - for providing a solution.

By the way, you probably will be interested in the upcoming change in TbActiveForm, committed as a PR #687