Added error code ER_QUERY_INTERRUPTED to the list of special errors
that prevent the slave from starting to execute a query.


sql/slave.cc:
  Added ER_QUERY_INTERRUPTED to special error code that prevents statement
  from being executed on slave.
mysql-test/r/rpl_critical_errors.result.txt:
  New BitKeeper file ``mysql-test/r/rpl_critical_errors.result.txt''
mysql-test/t/rpl_critical_errors.test:
  New BitKeeper file ``mysql-test/t/rpl_critical_errors.test''