Ruby/Informix 0.6.1

This is a maintenance release to fix a bug triggered while working
with Ruby on Rails and Informix.

Changelog:

0.6.1 13/10/2007

Bugs fixed:
* Database#columns was returning an empty array from within the
Informix ActiveRecord adapter
(ActiveRecord::ConnectionAdapters::InformixAdapter#columns) if
called for different tables. This bug was raising the
following
error in Ruby on Rails:

            undefined method columname=

      Noticed by Andrés Rafael <aandresrafael at gmail dot com>