OpenSCADimport: fixed centering of linear extrude
relicense Keith's contributions under LGPL

Date: Thu, 26 Sep 2013 10:03:48 +0100
From: Keith Sloan <keithsloan*****@gmail.com>
To: Sebastian Hoogen <sebastian@h****n.de>
Message-ID: <CA+0edZVU6OP2WfBFz4JxfGhjys_bxUg056WzROUfvfLrU=CH6A@mail.gmail.com>
In-Reply-To: <e10e0dc5-44be-4431-8288-1bd795af6418@email.android.com>
Subject: Re: OpenSCAD license

Happy to relicense under LGPL