phpunit removed from composer
composer
composer
    refactored constant ID_KEY to KEY_ID, added KEY_TYPE
    maui namespace is now always lowercase
    docs
    model poliphony - get an object of class by _type field
    new schema definition: '@extends' to import schema from parent class and specify only the additional part of schema
    named instances trait

    new validator - DomainName
    schema attributes are now validated as arrays, even if scalars (cast to array while validating)
    new validators: toArray and toAssoc