Three new releases: core, extras and jsxmlrpc

PHP-XMLRPC version 2.2: mostly bugfixes

PHP-XMLRPC version 0.4: mostly bugfixes

JS-XMLRPC version 01: brand new library, implements XML-RPC and JSON-RPC clients in Javascript. The programming API is the same as for the php-xmlrpc library. As a bonus, includes a visual editor for xmlrpc values, that can be integrated in the phpxmlrpc debugger.