Allowing item activated instead of only doubleclicking on search table. Allowing negative stock on non piece.
Merge commit '6de8146c8d21cf379c743e1be02fd455be03c77a' into Real

* commit '6de8146c8d21cf379c743e1be02fd455be03c77a':
  Allowing item activated instead of only doubleclicking on search table. Allowing negative stock on non piece.