fix buglet when nr-delete-op gets page fault

Fix bug where page is read, modified and then transaction abort
  and then puge is flushed causing lsn on page to be 0

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

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

  Unleash backup to write more than 32k at a time
  Using parameter BackupMaxWriteSize
  (greatly affect LCP time in 5.1, set default value to 256k)

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

  fix dirty page handling during opt.nr

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

  Fix alignment of sockaddr(_in)

  ndb_mgmd limited no of api nodes, by restricting no of mgmsessions
  (these are used for dynamic port allocation)

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

  Fix so that testDict can use/handle disk tables

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

  Handle early abort of scan, so that resources are correctly freed

1) relax version check for restore block since no changes has happend since 5.1.6
   and improve error message on check failure
   
2) improve lcp/backup max write size...

  Fix various abort cases (mainly MM but also 1 DD)
    that has been found running dbt2

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

+ removed not needed --

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

  bug#19141, bug#18575
  
  Maek sure global dict lock is taken during create/drop file/filegroup

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

  Fix error handling when out of diskspace

    ndb: corrected initialization of records

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

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

- corrected previous patch
- read log entry variables out into explicit variables for siimpler code (and backwards compatability code)

  A-insert/B-insert/A-rollback/B-rollback leads to node crash, as bits in tuple header gets incorrectly assigned in second insert
  this also likely fixes bug 18589 and explains 18808

  fix bug#19244, dd page got locked in page cache
  likely fix bug 18780

  fix memory corruption in event-api
  maybe bug fix for 18621, 19154, 19172, 19174

into  rurik.mysql.com:/home/igor/dev/mysql-5.1-2