added composer.json
added readme.md
Object::getReflection() and Callback::toReflection() return native object (BC break)
removed old (non-static) Callback.php
Strings::toAscii(): support for czech and french quotation marks
Merge pull request #3 from detrandix/fix/strings-to-ascii

Strings::toAscii(): support for czech and french quotation marks
Json: workaroud for PHP fatal error caused by \u0000 at the beginning of key