New benchmark test

Fixed bug in REPLACE with BDB tables
Prepare for write lock on read for BDB
Inform the handler when we want to use IGNORE / REPLACE
New manual pages


Docs/manual.texi:
  Updates for BDB tables and new changes
client/mysql.cc:
  Cleanup
configure.in:
  Added sys/ioctl.h
heap/hp_rkey.c:
  Fixed bug when reading next on not unique key
include/my_base.h:
  Added new extra options
man/mysql.1:
  Added example
mysys/my_write.c:
  Safety fix
scripts/mysqlaccess.sh:
  Removed debug output
scripts/safe_mysqld.sh:
  Added --open-files-limit
sql-bench/Results/ATIS-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/RUN-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/alter-table-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/big-tables-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/connect-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/create-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/insert-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/select-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/Results/wisconsin-mysql-Linux_2.2.14_my_SMP_i686:
  Updated to new benchmark
sql-bench/bench-init.pl.sh:
  Updated to new benchmark
sql-bench/server-cfg.sh:
  Fixes for HEAP tables
sql-bench/test-ATIS.sh:
  Fix for heap tables
sql-bench/test-insert.sh:
  Added some ORDER BY benchmarks to test more things
sql/ha_berkeley.cc:
  Fix a bug in REPLACE
sql/ha_berkeley.h:
  Fix to handle lock_on_read
sql/mysql_priv.h:
  Prepare for internal subtransactions in BDB
sql/mysqld.cc:
  Added -O open_files_limit=#
sql/sql_insert.cc:
  Inform the handler when we want to use IGNORE / REPLACE
sql/sql_load.cc:
  Inform the handler when we want to use IGNORE / REPLACE
sql/sql_parse.cc:
  Cleanup
sql/sql_show.cc:
  Cleanup
sql/sql_table.cc:
  Inform the handler when we want to use IGNORE / REPLACE
sql/sql_update.cc:
  Inform the handler when we want to use IGNORE / REPLACE
support-files/binary-configure.sh:
  Better message

client/mysql.cc

@@ -505,10 +505,12 @@ static void usage(int version)
 			log.\n");
 #ifndef __WIN__
   printf("\
-  --pager[=...]         Output type. Default is your ENV variable PAGER.\n\
+  --pager[=...]         Pager to use to display results. If you don't supply\n\
+                        an option the default pager is taken from your ENV\n\
+                        variable PAGER (%s).\n\
                         Valid pagers are less, more, cat [> filename], etc.\n\
                         See interactive help (\\h) also. This option does\n\
-                        not work in batch mode.\n");
+                        not work in batch mode.\n", getenv("PAGER") ? getenv("PAGER") : "");
 #endif
   printf("\
   -p[password], --password[=...]\n\