This unit test verifies that if an Action Event doEventSubmit_ is called, and it throws an Exception, the
exception is bubbled up out of the ActionLoader...
This unit test verifies that if an Action Event doEventSubmit_ is called,
and it throws an Exception, if the action.event.bubbleexception
property is set to false then the exception is NOT bubbled up
This unit test verifies that if your standard doPerform is called,
and it throws an Exception, if the action.event.bubbleexception
property is set to false then the exception is NOT bubbled up