Added my_sync() to mysys which will do fsync/fdatasync/_commit() on a file.


VC++Files/mysys/mysys.dsp:
  Added my_sync.c
configure.in:
  Added testing of fsync and fdatasync
include/my_sys.h:
  Added my_sync()
include/mysys_err.h:
  Added my_sync()
isam/extra.c:
  Added my_sync()
myisam/mi_extra.c:
  Added my_sync()
myisam/mi_locking.c:
  Added my_sync()
mysql-test/mysql-test-run.sh:
  Added option --valgrind-all
mysys/Makefile.am:
  Added my_sync.c
mysys/errors.c:
  Added my_sync()
mysys/my_symlink.c:
  Removed compiler warning
mysys/thr_alarm.c:
  Fix for link error on windows
sql/unireg.cc:
  Call my_sync() after all data is written to .frm file
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted