Fix a copule of dd bugs
    typo in lgman, potential run-time crash
    inconsistency in tup, potentially causing crash after SR


storage/ndb/src/kernel/blocks/dbtup/Dbtup.hpp:
  Fix so that extentPtr.p->m_free_space is updated after page is written first time
    plus a number of new asserts
storage/ndb/src/kernel/blocks/dbtup/DbtupDiskAlloc.cpp:
  Fix so that extentPtr.p->m_free_space is updated after page is written first time
    plus a number of new asserts
storage/ndb/src/kernel/blocks/lgman.cpp:
  Fix a couple of asserts
  Fix a typo causing unpredictable crash "&= ~x" was "&= x"
storage/ndb/test/ndbapi/test_event.cpp:
  Fix test_event