fix commit triggers with DD but not using DD

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

- put page of deleted row last in list

clean up varsize
by putting varpart ref "inside" fixpart instead of "optionally" at the end

into  ymer.(none):/usr/local/mysql/mysql-5.1-telco-gca

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

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

into  ymer.(none):/usr/local/mysql/mysql-5.1-telco-gca

into  ymer.(none):/usr/local/mysql/mysql-5.1-telco-gca

In a certain code path the NDBD could loop infinitely in the lock queue.

NdbTransaction::executeAsynch() was not implemented. Add implementation.

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

  add new functions for (easier) using NdbRestarter

  add (auto) testcase for bug#28023

  fix COPY_ROWID return value

  make sure that copy tuple is released in all cases

  testcase only
  new pseudo column NDB$COPY_ROWID

  tupscan misses uncommitted inserts by own transaction
    let tupkeyreq handle dirty/savepoint

  also siable diskscan as temporary fix for bug#27776

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

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

  fix commit trigger on multi-update

  testcase

  add event log listener test tool

  Only prepare "next" GCI if we're in the first 4 highest GCI's
    to avoid we can get several buckets with same GCI

  Make sure API is connected to nodes when subscribing