c5419 because it is merge from branches/zip into branches/5.1
c5466 because the source code has been adjusted to match the MySQL
  behavior and the innodb-autoinc test does not fail in branches/zip,
  if c5466 is merged, then innodb-autoinc starts failing, Sunny suggested
  not to merge c5466.
and resolving conflicts in c5410, c5440, c5488:

  ------------------------------------------------------------------------
  r5410 | marko | 2009-06-24 22:26:34 +0300 (Wed, 24 Jun 2009) | 2 lines
  Changed paths:
     M /branches/5.1/include/trx0sys.ic
     M /branches/5.1/trx/trx0purge.c
     M /branches/5.1/trx/trx0sys.c
     M /branches/5.1/trx/trx0undo.c
  
  branches/5.1: Add missing #include "mtr0log.h" to avoid warnings
  when compiling with -DUNIV_MUST_NOT_INLINE.
  ------------------------------------------------------------------------
  r5419 | marko | 2009-06-25 16:11:57 +0300 (Thu, 25 Jun 2009) | 18 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/mysql-test/innodb_bug42101-nonzero.result
     M /branches/5.1/mysql-test/innodb_bug42101-nonzero.test
     M /branches/5.1/mysql-test/innodb_bug42101.result
     M /branches/5.1/mysql-test/innodb_bug42101.test
  
  branches/5.1: Merge r5418 from branches/zip:
  
    ------------------------------------------------------------------------
    r5418 | marko | 2009-06-25 15:55:52 +0300 (Thu, 25 Jun 2009) | 5 lines
    Changed paths:
       M /branches/zip/ChangeLog
       M /branches/zip/handler/ha_innodb.cc
       M /branches/zip/mysql-test/innodb_bug42101-nonzero.result
       M /branches/zip/mysql-test/innodb_bug42101-nonzero.test
       M /branches/zip/mysql-test/innodb_bug42101.result
       M /branches/zip/mysql-test/innodb_bug42101.test
    
    branches/zip: Fix a race condition caused by
    SET GLOBAL innodb_commit_concurrency=DEFAULT. (Bug #45749)
    When innodb_commit_concurrency is initially set nonzero,
    DEFAULT would change it back to 0, triggering Bug #42101.
    rb://139 approved by Heikki Tuuri.
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------
  r5440 | vasil | 2009-06-30 13:04:29 +0300 (Tue, 30 Jun 2009) | 8 lines
  Changed paths:
     M /branches/5.1/fil/fil0fil.c
  
  branches/5.1:
  
  Fix Bug#45814 URL reference in InnoDB server errors needs adjusting to match documentation
  
  by changing the URL from
  http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html to
  http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting-datadict.html
  
  ------------------------------------------------------------------------
  r5466 | vasil | 2009-07-02 10:46:45 +0300 (Thu, 02 Jul 2009) | 6 lines
  Changed paths:
     M /branches/5.1/mysql-test/innodb-autoinc.result
     M /branches/5.1/mysql-test/innodb-autoinc.test
  
  branches/5.1:
  
  Adjust the failing innodb-autoinc test to conform to the latest behavior
  of the MySQL code. The idea and the comment in innodb-autoinc.test come
  from Sunny.
  
  ------------------------------------------------------------------------
  r5488 | vasil | 2009-07-09 19:16:44 +0300 (Thu, 09 Jul 2009) | 13 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     A /branches/5.1/mysql-test/innodb_bug21704.result
     A /branches/5.1/mysql-test/innodb_bug21704.test
  
  branches/5.1:
  
  Fix Bug#21704 Renaming column does not update FK definition
  
  by checking whether a column that participates in a FK definition is being
  renamed and denying the ALTER in this case.
  
  The patch was originally developed by Davi Arnaut <Davi.Arnaut@Sun.COM>:
  http://lists.mysql.com/commits/77714
  and was later adjusted to conform to InnoDB coding style by me (Vasil),
  I also added some more comments and moved the bug specific mysql-test to
  a separate file to make it more manageable and flexible.
  
  ------------------------------------------------------------------------