Merge bk-internal.mysql.com:/home/bk/mysql-5.1-engines

into  chilla.local:/home/mydev/mysql-5.1-wl2936-two


client/mysql.cc:
  Auto merged
client/mysqltest.c:
  Auto merged
include/my_global.h:
  Auto merged
include/my_sys.h:
  Auto merged
mysql-test/lib/mtr_cases.pl:
  Auto merged
mysql-test/mysql-test-run.pl:
  Auto merged
mysql-test/r/ndb_dd_basic.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/t/ndb_dd_basic.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
mysys/hash.c:
  Auto merged
sql/event_queue.cc:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/ha_partition.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_connect.cc:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_plugin.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/structs.h:
  Auto merged
sql/table.cc:
  Auto merged
storage/innobase/handler/ha_innodb.cc:
  Auto merged
storage/innobase/handler/ha_innodb.h:
  Auto merged
include/typelib.h:
  WL#2936 - Falcon & MySQL plugin interface: server variables
  Manual merge
mysys/typelib.c:
  WL#2936 - Falcon & MySQL plugin interface: server variables
  Manual merge

sql/sql_connect.cc

@@ -967,6 +967,7 @@ bool login_connection(THD *thd)
 void end_connection(THD *thd)
 {
   NET *net= &thd->net;
+  plugin_thdvar_cleanup(thd);
   if (thd->user_connect)
     decrease_user_connections(thd->user_connect);
   if (net->error && net->vio != 0 && net->report_error)