50->51 merge of bug#20442, force close scan (with locks)

  ndbapi test of bug#20252

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

  force close of scan (of outstanding scan_frag)

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

- make sure to invalidate even if table is not binlogged

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

  Adding back ndb partition tests from mysql-test-extra per tomas and clavin
  new file

into  mysql.com:/data0/mysql-5.1

  Adding back ndb partition tests from mysql-test-extra per tomas and clavin
  new file

- post merge fixes for 5.1

- post merge fixes for 5.1

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

  allow user to specify scan batch size in readTuples

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

- correction of previous patch

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

- make sure to allocate just enough pages in the fragments by using the actual
  row count from the backup, to avoid over allocation of pages to fragments, and
  thus avoid the bug

into  mysql.com:/opt/local/work/mysql-5.1-runtime

into  mysql.com:/data0/mysql-5.1

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

into  mysql.com:/opt/local/work/mysql-5.1-runtime

into  mysql.com:/opt/local/work/mysql-5.1-runtime

into  mysql.com:/usr/local/mysql/tmp-5.1

The 250 simultaneous events all accessing the same table caused the
events_stress test to fail due to debug warnings about too many table
waiters. Fixed by using three different tables.

  make sure we can only drop files from correct file group

  part 2 - handle safecounter.init() failing in all parts of event code

into lmy004.:/work/mysql-5.1-runtime-bug16992

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

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

  part 1 - make sure return code is propagated from request tracker

into  mysql.com:/usr/local/mysql/tmp-5.1

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

into lmy004.:/work/mysql-5.1-runtime-bug18897

into  mysql.com:/home/emurphy/src/bk-clean/mysql-5.1

  Delete: scripts/make_win_src_distribution.sh
Makefile.am:
  Unix and Windows now shares source package