Part of postreview fixes added.


mysql-test/r/maria.result:
  Added variable to control log directory syncs.
storage/maria/ha_maria.cc:
  Added variable to control log directory syncs.
storage/maria/ma_loghandler.h:
  Added variable to control log directory syncs.
storage/maria/ma_loghandler_lsn.h:
  postreview fix
storage/maria/unittest/Makefile.am:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_first_lsn-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_max_lsn-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_noflush-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_pagecache-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_test_loghandler_purge-t.c:
  New file with logrecord descriptors for tests.
storage/maria/unittest/ma_loghandler_examples.c:
  New BitKeeper file ``storage/maria/unittest/ma_loghandler_examples.c''