note 89044 deleted from function.json-encode by thiago

Note Submitter: muz at focus dash computing.com.au ---- json_encode didn't work well for me, where some of my strings included special characters (not necessarily utf8). It would simply return a null. For example: Hinge 107° The degree symbol would cause the entire string to be returned as a null. I managed to solve this once by trying to convert the text to utf8 first, however this didn't work consistently. In this instance I have reverted to an older JSON encoding class to process my strings.