redo checkSchemaState to handle bug (plus prepare to handle other DD related bugs in the area)

  new big test prg testDict -n DictRestart
  new bug test prg testDict -n Bug21755

  refactor testSRBank and create new class NdbMixRestarter

  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

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

  make sure not to leave partially initialized pagerage-records

  put64 for 64-bit variables

  reformat code a bit to be more compiler friendly

  remove compiler warning from last changeset

    Fix race condition between NODE_FAILREP and local INCL_NODEREQ loop
    Also retry on ZNODE_START_DISALLOWED_ERROR

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

  fix test prg

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

    Additional fix for 2-node case

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

  make sure master is sendable

  make sure master node is sendable, when getting ref::NotMaster 

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

    Handle race condtition between MASTER_GCPCONF and execGCP_NODEFINISH

  Fix correct min-value for LockPagesInMemory

  Fix compile error with gcc4

  Fix race in testprg...causing random TC crashes

 increase some timeouts...

  Allow readTablePk to stumble on scan+deleted tuple,
      reporting no-match instead of crash (in case scan is lock-owner)

  Fix bug in SUMA::resend_bucket which could cause mysqld to crash