USAGE: This script is based off of the nuSOAP library's example SOAP-client. It has its own debugging output, but if you check 'Debug Mode' you will get additional LyricWiki-specific output in the RESPONSE SECTION because it is coming back from the server as part of the response.
Since the debugging output is thrown right into the output buffer, the result of DEBUG MODE will always say 'XML error parsing SOAP payload on line 1: Empty document'. This is done because a fatal error may occur after the output and the script wouldn't get a chance to output proper XML if we didn't just write directly to the output-buffer.