Portability fixes.

Patches required by Gemini
Fix to properly detect if there is an active transaction in InnoDB
Fix to not lock thread structure when doing automatic rollback when thread ends
Allow -O lower_case_names=0 on UNIX


Docs/manual.texi:
  Some updates from mailing list.
  Changelog
client/mysqlbinlog.cc:
  Removed variables declared in net.c
configure.in:
  Added test for strtoll and fixed test for gethostname_r for AIX
mysql-test/t/innodb.test:
  Added test of active transactions
sql/field.cc:
  Patch required by Gemini
sql/field.h:
  Patch required by Gemini
sql/filesort.cc:
  Patch required by Gemini
sql/gen_lex_hash.cc:
  Update to support new syntax
sql/ha_gemini.cc:
  Patch required by Gemini
sql/ha_gemini.h:
  Patch required by Gemini
sql/ha_innobase.cc:
  Fix to properly detect if there is an active transaction in InnoDB
sql/handler.cc:
  Fix to properly detect if there is an active transaction in InnoDB
sql/handler.h:
  Fix to properly detect if there is an active transaction in InnoDB.
  Fix for Gemini
sql/lex.h:
  SHOW LOCKS
sql/mysqld.cc:
  Fix to not lock thread structure when doing automatic rollback when thread ends.
sql/share/portuguese/errmsg.txt:
  Update
sql/sql_class.cc:
  Fix to not lock thread structure when doing automatic rollback when thread ends.
sql/sql_class.h:
  Fix to properly detect if there is an active transaction in InnoDB
sql/sql_delete.cc:
  Fix for Gemini
sql/sql_parse.cc:
  Allow -O lower_case_names=0 on UNIX
sql/sql_select.cc:
  Fix for Gemini
sql/sql_table.cc:
  Allow -O lower_case_names=0 on UNIX
sql/sql_update.cc:
  Fix for Gemini
sql/sql_yacc.yy:
  For SHOW LOCKS
strings/strto.c:
  Portability fix

sql/ha_gemini.h

@@ -205,3 +205,4 @@ int gemini_set_option_long(int optid, long optval);
 const int gemini_blocksize = BLKSIZE;
 const int gemini_recbits = DEFAULT_RECBITS;
 
+extern "C" void uttrace(void);