include/lf.h:
  few lf API changes
mysys/lf_alloc-pin.c:
  few lf API changes
mysys/lf_dynarray.c:
  few lf API changes
mysys/lf_hash.c:
  few lf API changes
storage/maria/Makefile.am:
  transaction manager
unittest/Makefile.am:
  maria transaction manager
unittest/mysys/my_atomic-t.c:
  ensure that values are positive
storage/maria/trxman.h:
  New BitKeeper file ``storage/maria/trxman.h''
unittest/maria/Makefile.am:
  New BitKeeper file ``unittest/maria/Makefile.am''
unittest/maria/trxman-t.c:
  New BitKeeper file ``unittest/maria/trxman-t.c''
storage/maria/trxman.c:
  comment clarified