Update tokyocabinet to 1.4.22, and perl, ruby and lua bindings.

Changes:
2009-05-21  Mikio Hirabayashi  <mikio@users.sourceforge.net>

* tcadb.c (tcadbmisc): "sync", "optimize", "vanish" commands were added.

- Release: 1.4.22

2009-05-10  Mikio Hirabayashi  <mikio@users.sourceforge.net>

* tchdb.c (tchdbsetdfunit, tchdbdfunit, tchdbdefrag): new functions.

* tchdb.c (tchdbdefragimpl, tchdbfbptrim, tchdbshiftrec): new functions.

* tcbdb.c (tcbdbsetdfunit, tcbdbdfunit, tcbdbdefrag): new functions.

* tctdb.c (tctdbsetdfunit, tctdbdfunit, tctdbdefrag): new functions.

* tcadb.c (tcadbopen): "dfunit" parameter was added.

* tcadb.c (tcadbmisc): "defrag" command was added.

- Release: 1.4.21

(obache)