Fix getSetting method in javascript.

Broken by JSONSerializer changes committed in 272b24d.

Author: dblain

mythtv/html/js/util.qjs

@@ -19,7 +19,7 @@ function getSetting(hostname, key, defValue) {
     $.getJSON("/Myth/GetSetting",
         { HostName: hostname, Key: key, Default: defValue },
         function(data) {
-            result = data.SettingList.Settings[0].Value;
+            result = data.SettingList.Settings[key];
         }).error(function(data) {
             setErrorMessage("<i18n>Unable to retrieve setting.</i18n>");
         });

mythtv/html/samples/js/samples.js

@@ -15,7 +15,7 @@ function GetSettingValue()
            	$("#debug").html( inspect( data , 10 ) );
 
 
-        	$("#SettingValue").val( data.SettingList.Settings[0].Value );
+        	$("#SettingValue").val( data.SettingList.Settings[sKey] );
         });
 }