mysql-trunk into mysql-5.6:

  * revision-id: vasil.dimov@oracle.com-20130611080934-zr5a0d41aucsyvs5
  * committer: Vasil Dimov <vasil.dimov@oracle.com>
  * branch nick: mysql-trunk
  * timestamp: Tue 2013-06-11 11:09:34 +0300
  * message:
  *   Fix Bug#16369955 MYSQL_INSTALL_DB EXITS WITH "UNKNOWN/UNSUPPORTED STORAGE
  *   ENGINE: INNODB"
  *
  *   Do not try to create mysql.innodb_table_stats and mysql.innodb_index_stats
  *   during mysql_install_db time if InnoDB is not present (not compiled in).