change some item names to unitxt english ver

* agitos
* flowen's sword
* db's saber
* real nei's claw
add one missing dot in unitxt english
add old japanese version from 2007's archive

+ unitxt\unitxt_j_j.txt
  last updated : 2007 may
+ shop\unitxt_shop_j_j.txt
  last updated : 2007 may
+ ws\unitxt_ws_j.txt
  last updated : 2007 may
add lacking entries to japanese ver
fix changed items in japanese version

* amps
* merges
* rainbow / empress / scht jacket
* adr / alr