<li>2015-05-30: fix problems with generating method payloads for NIL and Undefined parameters</li>
<li>2015-04-19: fix problems with LATIN-1 characters in payload</li>
<li>2007-02-20: add visual editor for method payload; allow strings, bools as jsonrpc msg id</li>
<li>2015-05-30: fix problems with generating method payloads for NIL and Undefined parameters</li>
<li>2015-04-19: fix problems with LATIN-1 characters in payload</li>
<li>2007-02-20: add visual editor for method payload; allow strings, bools as jsonrpc msg id</li>