Free character sets properly (for embedded).
Add missing mutex in HANDLER CLOSE


Build-tools/Do-compile:
  Update for gcc 3.0
Docs/manual.texi:
  Update for gcc 3.0
myisam/mi_locking.c:
  Fix not critical bug in locking
myisam/myisamdef.h:
  Fix not critical bug in locking
mysys/my_init.c:
  Free character sets properly
mysys/my_seek.c:
  Remove warning
sql-bench/server-cfg.sh:
  Fix benchmarks to run with MySQL
sql/sql_handler.cc:
  Add missing mutex
sql/sql_update.cc:
  Clean up procinfo