Fixes wrong event names fired by _swfEventHandler 

in file-flash the _swfEventHandler re-fires some events, however it fires 'uploadfinished' (that does not exists as a documented event, and nothing listens to it) instead of 'uploadcomplete'. Furthermore it fires 
'uploadcomplete' in place of 'uploadcompletedata'.
Strangely enough the example on the site does work nonetheless, however in some situations the missing re-firing of the event makes it impossible to listen to the 'uploadcomplete' event.