CLSQL Release

Spurred on by a message from the SBCL-devel list, I think its time for
a clsql release.

> It is actually a clsql problem, its reinitialize-instance around methods
> for standard-db-class do not return the passed instance to them.
> I made SBCL ignore that again, but things should be prepared that
> SBCL won't be so lenient in the future, maybe with type and equality
> assertions for all standard GFs.
>
> --
> With best regards, Stas.

I made the `reinitialize-instance :around`, return the passed in
instance.

Also in this release are some encoding bug fixes for sqlite backends
(thanks Zach Beane). Fixes for procedures and multiple result sets in
the mysql backend (thanks Ilya Khaprov). There was also a fixed load
bug for mysql on recent Ubuntu's (hopefully not causing problems
elsewhere).

I believe this will be release 6.6.0, but as always I leave that to
Kevin's discretion. Nathan Bird will push this all to b9.org in a bit.

Cheers,
Russ Tyndall
Developer
Acceleration.net