cabal: update description
cabal: update description

Ignore-this: 766f1f0303e5232c1b0cbbd50ca9b942

darcs-hash:20090908001743-e018d-158d433629a41ef19fd818ab3bca9f05d4aac6b2.gz

creswick/dbmigrations,jakubfijalkowski/dbmigrations,anton-dessiatov/dbmigrations,nick0x01/dbmigrations,nathankot/dbmigrations