UUID() function


BitKeeper/etc/ignore:
  Added mysys/test_gethwaddr to the ignore list
include/my_sys.h:
  my_gethwaddr()
mysys/Makefile.am:
  my_gethwaddr
sql/item_create.cc:
  UUID() function
sql/item_create.h:
  UUID() function
sql/item_strfunc.cc:
  UUID() function
sql/item_strfunc.h:
  UUID() function
sql/lex.h:
  UUID() function
sql/mysql_priv.h:
  UUID() function
sql/mysqld.cc:
  UUID() function
sql/sql_class.cc:
  cleanup