darcs-hash:5b6950a5e9edc794861931e8fa3d803020cdf6c9

darcs-hash:285bee6c5dc2e84b839c78bfa814c99227b4a597

darcs-hash:210bf5c1f7a2a935497db49924aef4906f4dd0a0

darcs-hash:fe73bdc39c44a5135a083817face9fa678db626c

darcs-hash:aabb4f3c2999abdf10420f51732ea8872057e60e

added src/classes.lisp and a class for db. Changed all funs using db handles to methods using db class

darcs-hash:b85bbc660931b7a787b3d6e1c90c560813f656e8

darcs-hash:a7c80b1668960e10c3c3a3bc0ec6dbbda89637a5

darcs-hash:c5a7612d7b0e5c3fd62667ca568290564bb23ffb