Fix of unit tests.
2 new tests for new features.


storage/maria/ma_control_file.c:
  Getting the definition from the file for unit-test.
storage/maria/ma_loghandler.c:
  Fix bug with skipped syncing.
storage/maria/unittest/ma_control_file-t.c:
  Fix of unit test of control file.
  2 new tests for new features of control file.