Updated for name chance on dbutil

  More code improvments

  More code improvments

  Updated with suggestions from Magnus and other fixes and adjustments I found along the way
DbUtil.hpp, DbUtil.cpp:
  fixes and adjustments I found along the way

into  mysql.com:/data0/jebs_clones/mysql-5.1-new-ndb

into  perch.ndb.mysql.com:/home/jonas/src/51-ndb

  page need to refetched after timeslice

into  whalegate.ndb.mysql.com:/home/tomas/cge-5.1

  remove dead code

  Rename: storage/ndb/test/src/dbutil.cpp -> storage/ndb/test/src/DbUtil.cpp
DbUtil.hpp, DbUtil.cpp:
  Many changes based off a review from Magnus
DbUtil.hpp:
  Rename: storage/ndb/test/include/dbutil.hpp -> storage/ndb/test/include/DbUtil.hpp

- make sure to reset the read and write sets

into  loke.(none):/home/knielsen/devel/mysql-5.1-new-ndb-bug33061

When partition pruning resulted in an ordered index scan spanning only
one partition, any descending flag for the scan was wrongly discarded,
turning ORDER BY DESC into ORDER BY ASC, and similar problems.

Fixed by correctly passing descending flag in SCAN_TABREQ signal sent
to data nodes.

into  whalegate.ndb.mysql.com:/home/tomas/cge-5.1

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb-merge

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-ndb-merge

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

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

into  trift2.:/MySQL/M50/push-5.0

rpl_ndb tests on sapsrv1.

into  bodhi.(none):/opt/local/work/mysql-5.1-runtime

into  bodhi.(none):/opt/local/work/mysql-5.0-runtime

into  bodhi.(none):/opt/local/work/mysql-5.1-runtime

into  whalegate.ndb.mysql.com:/home/tomas/cge-5.1

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-ndb

Adding the tests cases alone for WL#4165, disabled

- Enable check for symbolic link files.

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.1-new-ndb-merge

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.1

into  whalegate.ndb.mysql.com:/home/tomas/mysql-5.0-ndb-merge

into  chorlton.adsl.perkin.org.uk:/Users/jonathan/work/bk/mysql-5.1

into  chorlton.adsl.perkin.org.uk:/Users/jonathan/work/bk/mysql-5.0

  Rationalise setting $FROM.

into  station.:/mnt/raid/alik/MySQL/devel/5.1-rt-merged-5.0-rt

into  station.:/mnt/raid/alik/MySQL/devel/5.1-rt

into  station.:/mnt/raid/alik/MySQL/devel/5.0-rt