Returns a translated array of week names.
bool $required: (optional) If FALSE, the returned array will include a blank value. Defaults to FALSE.
array An array of week day names
public static function weekDays($required = FALSE) {
$weekdays = array(
t('Sunday'),
t('Monday'),
t('Tuesday'),
t('Wednesday'),
t('Thursday'),
t('Friday'),
t('Saturday'),
);
$none = array(
'' => '',
);
return !$required ? $none + $weekdays : $weekdays;
}