Links should encode url param separator

[Bob Schellink]

Hi all,

While updating the Click-Cayenne example I've noticed that the Ajax 
request to view a customer doesn't work. The browser moans about 
invalid xml.

Turns out the problem is with ActionLink which renders the URL as:

  mypage.htm?param1&value1

'&' is invalid xml. Simple solution is to encode it as '&'.

I'll fix this for the next release.

regards

bob