New privilege CREATE USER (CREATE_USER_ACL, Create_user_priv) added
grant2.test:
  new tests (mostly backported from jani's patch)
system_mysql_db.result, sp.result, grant2.result, grant.result:
  results updated


mysql-test/r/grant.result:
  results updated
mysql-test/r/grant2.result:
  results updated
mysql-test/r/sp.result:
  results updated
mysql-test/r/system_mysql_db.result:
  results updated
mysql-test/t/grant2.test:
  new tests (mostly backported from jani's patch)
scripts/mysql_create_system_tables.sh:
  Create_user_priv added
scripts/mysql_fix_privilege_tables.sql:
  Create_user_priv added
sql/sql_acl.cc:
  Create_user_priv added
sql/sql_acl.h:
  Create_user_priv added
sql/sql_parse.cc:
  Create_user_priv added
sql/sql_show.cc:
  Create_user_priv added
sql/sql_yacc.yy:
  Create_user_priv added
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted