Use of array constructor: [] in v1.0.0

[emiliano-sangoi]

Helllo,

In FlashMessage.php, version 1.0.0, [ ] it's used multiple times to instantiate an array, which is avalaible in PHP 5.4, but according to packagist docs version 1.0.0 needs php: >=5.3.0, so FlashMessage class should use array() constructor instead of [] or information in packagist should be updated.