darcs patch: Added list operations for arrows

[Henning Thielemann]

On Fri, 31 Oct 2008, Wolfgang Jeltsch wrote:

> Hello,
>
> wouldn’t it be better to stop using identifiers containing categorization in
> form of single letters like filterA, mappend, etc.?  I’d say, we have the
> module system for this: Monoid.append, Arrow.filter, etc.  Is someone
> interested in cleaning up the library interfaces in this regard while
> maintaining compatibility?

At least, I would be interested in using such cleaned up interface.