Fixes autodiscovery of tables. 
Allows the FRM to be extracted from the ARZ file via archive_reader. 

into  zim.(none):/home/brian/mysql/archive-newformat-5.1

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-arch

into  zim.(none):/home/brian/mysql/archive-newformat-5.1

2) We now store shortest and longest row information.
3) archive_reader can now check and backup files (even if they are hot)
4) We now record longest and shortest row information for stats. 

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint-topush

into  recycle.(none):/src/mysql-5.0-maint

into  recycle.(none):/src/mysql-5.1-maint

into  recycle.(none):/src/bug22807/my51-bug22807

- Corrected compiler warnings and performance problems with new 
dynstr_append_os_quoted function.

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint

into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-maint

and combined, they add a platform-specific warning.  The warnings 
are not the goal of the test, in any case.

into  polly.local:/home/kaa/src/maint/mysql-5.1-maint

mysqlimport.c declared the opt_use_threads variable as my_bool, but the corresponding option was defined as GET_UINT. The problem only occured on architectures with strict alignment rules.

into  pilot.mysql.com:/home/msvensson/mysql/mysql-5.1-new-maint

into  pilot.mysql.com:/home/msvensson/mysql/mysql-5.0-maint

into  pilot.mysql.com:/home/msvensson/mysql/mysql-5.1-new-maint

 - Additional patch removing check for mysql_errno on already closed
   mysql1

into  mysql.com:/usr/home/ram/work/bug22533/my50-bug22533

into  mysql.com:/usr/home/ram/work/bug22533/my51-bug22533

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/51

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/50

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/51

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/50

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/41

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/51

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/50

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/51

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/50

into  siva.hindu.god:/home/tsmith/m/bk/mrg-jan17/maint/41

into  recycle.(none):/src/mysql-5.0-maint