fix corruption of update urls

apps/routerconsole/java/src/net/i2p/router/web/ConfigUpdateHandler.java

@@ -104,6 +104,7 @@ public class ConfigUpdateHandler extends FormHandler {
         }
 
         if ( (_updateURL != null) && (_updateURL.length() > 0) ) {
+            _updateURL = _updateURL.replaceAll("\r\n", ",").replaceAll("\n", ",");
             String oldURL = _context.router().getConfigSetting(PROP_UPDATE_URL);
             if ( (oldURL == null) || (!_updateURL.equals(oldURL)) ) {
                 _context.router().setConfigSetting(PROP_UPDATE_URL, _updateURL);

apps/routerconsole/java/src/net/i2p/router/web/ConfigUpdateHelper.java

@@ -36,7 +36,7 @@ public class ConfigUpdateHelper {
     public String getUpdateURL() {
         String url = _context.getProperty(ConfigUpdateHandler.PROP_UPDATE_URL);
         if (url != null)
-            return url;
+            return url.replaceAll(",", "\n");
         else
             return ConfigUpdateHandler.DEFAULT_UPDATE_URL;
     }