paramValues
paramValues - java.util.Map
A map of parameters of the request, Map<String, String[]>, returned by
[http://docs.oracle.com/javaee/6/api/javax/servlet/ServletRequest.html#getParameterValues(java.lang.String)
ServletRequest.getParameterValues()]
To retrieve the first value of a parameter if any, use param instead.
${param.something}
${paramValues.something[1]}
Notice that, in zscript, there is no paramValues. Param is a map of
possible values, Map<String, String[]>.
<zscript>
String[] values = param.get("something");
</zscript>