From: Scott Worley <ScottWorley@ScottWorley.com>
Date: Mon, 31 Dec 2012 08:54:08 +0000 (-0800)
Subject: Handle opposite vectors in rotate_onto
X-Git-Url: http://git.scottworley.com/nt3d/commitdiff_plain/df8f7c913f82a09f187927f8f201844a4e738060?hp=df8f7c913f82a09f187927f8f201844a4e738060

Handle opposite vectors in rotate_onto

And detect them in extrude() and avoid calling rotate_onto for the
second rotation in that case.
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