Changed SortColumn from (common-lang) Enum to JDK 1.5 enum.

VlibLibraryEngine

activateExceptionPage()
	- Changed signature (ResponseOutputStream no longer exists)
	
handleStaleSessionException()
	- Changed signature (ResponseOutputStream no longer exists)


Border

getBrowserBinding()
	- No longer exists (no binding properties, just connected parameter properties)
selectBrowserPage() (listener method)
	- removed IRequestCycle parameter (no longer needed)
	- added page parameter
	
Login
- Changed interface from PageRenderListener to PageBeginRenderListener
loginUser()
	- IEngine.getServletPath() has been removed, as has RequestContext.addCookie()
	- Replaced with calls to infrastructure:CookieSource [TAPESTRY-438]
	- Replace IEngine.forgetPage() with IRequestCycle.forgetPage()
pageBeginRender()
	- Replaced with calls to infrastructure:CookieSource (to read the user's email)