a fatal error. New handling of ignore error in place.


mysql-test/t/partition.test:
  New test case
sql/ha_ndbcluster.h:
  New handler method to check if error can be ignored
sql/ha_partition.h:
  New handler method to check if error can be ignored
sql/handler.h:
  New handler method to check if error can be ignored
sql/sql_acl.cc:
  Use new handler method
sql/sql_insert.cc:
  Use new handler method
sql/sql_table.cc:
  Use new handler method
sql/sql_union.cc:
  Use new handler method
sql/sql_update.cc:
  Use new handler method