added PropertyAccessorBuilder, to enable or disable the support of "__call"
added support for "__call" in the PropertyAccessor (disabled by default)
[BC BREAK] changed PropertyAccessor to continue its search for a property or
method even if a non-public match was found. Before, a PropertyAccessDeniedException
was thrown in this case. Class PropertyAccessDeniedException was removed
now.
deprecated PropertyAccess::getPropertyAccessor
added PropertyAccess::createPropertyAccessor and PropertyAccess::createPropertyAccessorBuilder
