- Crash occured in ha_ndbcluster::applying_binlog(),  m_thd_ndb was NULL
   since the extra(HA_EXTRA_WRITE_CAN_REPLACE) call comes before
    table has been locked. It's thus not possible to use m_thd_ndb
    in any function being called from ha_ndbcluster::extra()
 - Utilize that the new pseudo_slave_mode variable  deletes the rli_fake* when
    mysqlbinlog is done executing binlog. Thus the thd->rli_fake can realiably be used
   to determine wheter "applying_binlog" should return true.
 - Move applying_binlog to ndb_thd.h since it's now a THD* only function.
 - Enable disabled testcase
 - Improve the usage of applying_binlog() in ndbcluster_commit by reading
   it's result into a variable named "ignore_error" since that is what the function
  is used for.
 - Remove unused ndb_mi_get_in_relay_log_statement()