CR-1908 Added basic stress on replicated topology and added add/del operation

Christophe Sovant

25.28.2013 edb3f7adefdc3f1786e0610c5b68353aaf0d39c4

opends/tests/staf-tests/stress-tests/shared/data/operations/binduser.ref does not exist in tree c93dd58d631d2c89f33bd00efdbf8d1ffbd1c45a