- xmlrpcs.inc: add a new member var in server class to allow fine-tuning of the encod...

- xmlrpcs.inc: add a new member var in server class to allow fine-tuning of the encoding of returned values when the server is in 'phpvals' mode; allow servers in 'xmlrpcvals' mode to also register plain php functions by defining them in the dispatch map with an added option: 'parameters_type' => 'phpvals' (feature request #2806628);
- xmlrpc.inc: added new method xmrlpc_client::SetCurlOptions($array) to	allow extra flexibility in tweaking http config, such as explicitly binding to an ip address (feature request #2787468); fix bad encoding if same object is encoded twice using php_xmlrpc_encode; removed some by-ref assignments and declarations

git-svn-id: https://svn.code.sf.net/p/phpxmlrpc/code/trunk/xmlrpc@41 013ecfd8-0664-425d-a759-9c98391dc3f9