Bug fix when using --no-deaults
Sets ref_length to right value (faster rnd_pos() handling in InnoDB).
Fixed problem with multi-table-delete and InnoDB
Fixed problem with truncate table, which required a COMMIT before.
Fixed multi-table-delete bug with InnoDB.
Remove not used index from EXPLAIN


Docs/manual.texi:
  ChangeLog
include/my_getopt.h:
  Removed compiler warnings
myisam/myisamchk.c:
  Fixes for new getopt
mysql-test/r/explain.result:
  Updated test results
mysql-test/r/innodb.result:
  Updated test results
mysql-test/r/join.result:
  Updated test results
mysql-test/t/innodb.test:
  Updated test results
mysys/default.c:
  Bug fix when using --no-defaults
mysys/my_getopt.c:
  Fixes for new getopt
sql/ha_innodb.cc:
  Sets ref_length to right value (faster rnd_pos() handling).
  Fixed problem with multi-table-delete.
  Fixed problem with truncate table, which required a COMMIT before.
sql/opt_sum.cc:
  Remove not used index from EXPLAIN
sql/sql_cache.cc:
  Fixed core dump bug when not using query cache
sql/sql_select.cc:
  Remove not used index from EXPLAIN