Exclamation mark breaks quote parsing

[AlexBlack772]

    $text	= "'Quoted text!'.\nAnother line";

    // Create a new instance
    $Sentence	= new \Vanderlee\Sentence\Sentence();

    // Split into array of sentences
    $sentences	= $Sentence->split($text);

    var_dump($sentences);

End of the quote and dot incorrectly parsed to a separate sentence. Sentence without exclamation mark is parsed correctly

array(3) { [0]=> string(13) "'Quoted text!" [1]=> string(3) "'. " [2]=> string(12) "Another line" }