datastream uses extension Fileinfo
added marker interface Nette\Utils\IHtmlString for objects that will be not escaped by Latte. (BC break)

BC break: Nette\Templating\ITemplate is not implementing IHtmlString, so it is now escaped. It should be not problem since Nette 0.9.x.
Nette\Iterators\CachingIterator renamed to Nette\Latte\Runtime\CachingIterator (BC break!)
Nette\Utils\Tokenizer & TokenIterator renamed to Nette\Latte\Tokenizer & TokenIterator (BC break, but they are internal classes)