Fixes json issue and sets version to 0.6.0.
Fixes json issue and sets version to 0.6.0.

Version 0.6 was chosen because there's still a few issues that would be nice for
a 1.0 release that aren't ready. Like base 64 encoding support.

xmlrpc-js/xmlrpc-marshalling,MiniGod/node-gbxremote,patricklodder/node-xmlrpc,AfterShip/node-xmlrpc,bolster/node-xmlrpc,hobbyquaker/homematic-xmlrpc,Growmies/node-xmlrpc,baalexander/node-xmlrpc