Some releases have annoying bugs that keep on poping up exceptions every couple
of seconds. They make the build unusable. I propose we make one slight change in
the behavior of the exception reporting dialog:

1) If the dialog is being created for the first time (i.e. it didn't already
exist holding other exceptions) then create a new Dialog and request focus. This
is the current behavior.

2) If the dialog already exists holding other exceptions it should add the
exception to the dialog but not request focus. This way the user keep on doing
his work without the keyboard focus being stolen.