[FIX] edi: wait longer for parent transaction to complete
[FIX] edi: wait longer for parent transaction to complete

  Wait for parent transaction to complete by watching if parent cursor
  has been closed or not. For batch transaction (ex: confirming 50 invoices
  at once using 'Confirm Draft Invoices' wizard) that might take longer
  that 3 seconds!

bzr revid: xal@openerp.com-20130228151511-r767sobhkrq6k75e
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