memory leak : window is still referenced after window.close() when using 
acitvity indicator or other timer-related callback components
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                 Key: PIVOT-792
                 URL: https://issues.apache.org/jira/browse/PIVOT-792
             Project: Pivot
          Issue Type: Bug
         Environment: current pivot trunk
            Reporter: Andrei Pozolotin


memory leak : window is still referenced after window.close() when using 
acitvity indicator or other timer-related callback components

here is bug project
https://github.com/carrot-garden/carrot-bugger/tree/master/carrot-bug-pivot-memory-leak-000

with 2 cases

"NO LEAK"
https://github.com/carrot-garden/carrot-bugger/tree/master/carrot-bug-pivot-memory-leak-000/src/main/java/com/carrotgarden/bug/case_1_no_leak

"LEAK"
https://github.com/carrot-garden/carrot-bugger/tree/master/carrot-bug-pivot-memory-leak-000/src/main/java/com/carrotgarden/bug/case_2_leak

basically, if window uses activity indicator it is placed in timer queue and 
never removed on window.close();

workaround: you must stop activity indicator manually via "on close" event 
listener;


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