Update BootstrapRow.php

Permite definir ícones e texto para Prepended e Appended inputs.
Allows define icons and text for Prepended and Appended inputs.

Exemplo (Exemple):
'bootstrap' => array(
    'prepend' => array(
        'Exemple',
        array(
            'icon' => 'icon-calendar',
            'text' => 'Data'
        )
    ),
    'append' => array(
        'Exemple',
        array(
            'icon' => 'icon-calendar',
            'text' => 'Data'
        )
    )
)