nicer error message to user, along with error code to help track down the problem.

BUG#22305  	SysLogHandler not thread safe
BUG#22313  	can get duplicate log messages in cluster log

Fix all these problems with one patch. Make Logger, hence EventLogger (with a 
bit more) thread safe.

into  willster.(none):/home/stewart/Documents/MySQL/5.1/ndb-mgm-work

into  trift2.:/MySQL/M51/push-5.1

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new-ndb

  remove timeing dependant part of test

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new-ndb

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new-ndb

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new-ndb

into  perch.ndb.mysql.com:/home/jonas/src/50-work

  Still leakage, make sure all unlinked operations are put back so they will be release
  (on failing blob operations, when AO_IgnoreError)

make the File_class::flush() method actually flush the stdio buffers.

into  orca.ndb.mysql.com:/export/home/space/pekka/ndb/version/my51-tux

Bug #21072  Duplicate key error in NDB references wrong key: Re-wrote string usage to avoid valgrind warnings

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.1-new-ndb

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.1-new-ndb

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.1

into  willster.(none):/home/stewart/Documents/MySQL/5.1/ndb

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.0

Bug #21072  Duplicate key error in NDB references wrong key: Re-wrote string usage to avoid valgrind warnings

into  ymer.(none):/usr/local/mysql/mysql-5.1-new-ndb

into  willster.(none):/home/stewart/Documents/MySQL/5.1/ndb

bugs.

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new-ndb

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.1-new-ndb

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.0-ndb

into  perch.ndb.mysql.com:/home/jonas/src/mysql-5.0-ndb

into  orca.ndb.mysql.com:/export/home/space/pekka/ndb/version/my50-tux

Revert 1 June change enough to restore ABI compatibility with previous
versions.

util thread wasn't behaving correctly after 241 error due to get_table_statistics
not properly returning an error code

bug#21873 MySQLD Crash on ALTER...ADD..UNIQUE..USING HASH statement for NDB backed table: Use passed key_info to check for nullable fields

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.0-ndb

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

fixes for ndb_* tests broken by previous fix

be more careful in ndb about setting errors on failure of info call (especially
in open)