[Pharo-project] [FIX] Issues 686+877

To integrate in Pharo : http://code.google.com/p/pharo/issues/detail?id=686 http://code.google.com/p/pharo/issues/detail?id=877 -- Serge Stinckwich UMI UMMISCO 209 (IRD/UPMC), Hanoi, Vietnam Smalltalkers do: [:it | All with: Class, (And love: it)] http://doesnotunderstand.org/