Partial lookbacks

As discussed in http://quantlib.10058.n7.nabble.com/Lookback-options-with-partial-floating-strike-td15662.html

This implements partial-time fixed and floating strike lookback options using the formulas developed by E.G. Haug in Option Pricing Formulas, Second Edition. Test cases from literature.
would it be problematic to just add

Copyright (C) 2014 Francois Botha

?

On Thu, Oct 16, 2014 at 12:02 PM, Luigi Ballabio <notifications@github.com>
wrote:

> In
> QuantLib/ql/pricingengines/lookback/analyticcontinuouspartialfixedlookback.cpp:
>
> > @@ -0,0 +1,165 @@
> > +/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
> > +
> > +/*
> > + Copyright (C) 2006 Warren Chou
> > + Copyright (C) 2007 StatPro Italia srl
>
> Ok then, I'll leave the original attribution.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/lballabio/quantlib/pull/125/files#r18947015>.
>