mysql-test/r/innodb.result:
  remove handler test from innodb.test
mysql-test/t/innodb.test:
  remove handler test from innodb.test
sql/ha_innodb.cc:
  HANDLER support
sql/ha_innodb.h:
  HANDLER support
sql/handler.h:
  HANDLER support for InnoDB
sql/sql_handler.cc:
  HANDLER support for InnoDB