[widgets] TWI test case errors

Hi Marcos & Dominique (and other widsters),

I've been implementing our semi-automated testing of Apache Wookie[1]  
for TWI[2], and have spotted a few errors in the test cases[3] you may  
want to fix:

za: URL of widget is incorrect; it should be http://dev.w3.org/2006/waf/widgets-api/test-suite/test-cases/ta-az/aa/aa.wgt

aq: OpenURL is called with the same nonsense string used in test "an",  
rather than the URL being tested for

an: Probably should show the gray "tested elsewhere" box as per "aq"  
rather than green, as you still have to check that another browser  
window didn't open

ao: URL of widget is incorrect; its actually at http://dev.w3.org/2006/waf/widgets-api/test-suite/test-cases/ta-pb/ao/ao.wgt 
  (so is the test assertion in the wrong location?)

-S

[1] http://incubator.apache.org/wookie/
[2] http://www.w3.org/TR/widgets-apis/
[3] http://dev.w3.org/2006/waf/widgets-api/test-suite/