the other for multi-table delete


sql/filesort.cc:
  Fixed some bugs for Unique class
sql/item.cc:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/item_sum.cc:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/mysql_priv.h:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/sql_class.h:
  Adding multi table delete
sql/sql_delete.cc:
  Added multi-table delete
sql/sql_lex.cc:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/sql_lex.h:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/sql_parse.cc:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc, plus added multi-table delete
sql/sql_select.cc:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/sql_update.cc:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc
sql/sql_yacc.yy:
  Changes caused by splitting lex into two parts, in order to 
  implement UNION's etc, plus added multi-table delete
sql/uniques.cc:
  Fixed some bugs in duplicate stripping
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted