fixups after review by jonas

into  willster.(none):/home/stewart/Documents/MySQL/5.0/bug13985

into  willster.(none):/home/stewart/Documents/MySQL/5.0/bug13985

  Memory leak fix

into  sunlight.local:/local_work/leak_fix

  Memory leak fix

now takes mbmaxlen into account when calculating max_length of new field. 

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  rama.(none):/home/jimw/my/mysql-5.0-16502

into  rama.(none):/home/jimw/my/mysql-5.0-16502

into  rama.(none):/home/jimw/my/mysql-5.0-16502

into  bodhi.local:/opt/local/work/mysql-5.0-runtime-merge

into  moonbone.local:/work/tmp_merge-5.0-opt-mysql

into  moonbone.local:/work/tmp_merge-5.0-opt-mysql

into  moonbone.local:/work/tmp_merge-5.0-opt-mysql

into  moonbone.local:/work/tmp_merge-5.0-opt-mysql

into  moonbone.local:/work/tmp_merge-4.1-opt-mysql

into  moonbone.local:/work/tmp_merge-4.1-opt-mysql

into  mysql.com:/home/hf/work/mysql-4.1.20317

into  bodhi.local:/opt/local/work/mysql-5.0-runtime-merge

into  lmy002.wdf.sap.corp:/home/georg/work/mysql/prod/mysql-5.0

  Delete: mysql-test/t/sp.test.orig

Fixes:
- bug #19834: Using cursors when running in READ-COMMITTED can cause InnoDB to crash
- bug #21112: InnoDB slow with > 100,000 .ibd files
- bug #21113: Duplicate printout in SHOW INNODB STATUS

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-4.1