Cactus Code Thorn TwoPunctures
Author(s)    : Marcus Ansorg
               Erik Schnetter
               Frank Löffler
Maintainer(s): Marcus Ansorg
               Erik Schnetter
Licence      : LGPLv2+
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1. Purpose

Create initial for two puncture black holes using a single domain
spectral method.  This method is described in
Marcus Ansorg, Bernd Brügmann, Wolfgang Tichy,
"A single-domain spectral method for black hole puncture data",
PRD 70, 064011 (2004),
arXiv:gr-qc/0404056.

This thorn was extended to include source terms to be able
to handle matter with the same restrictions as the BHs before plus
zero momentum/ang. momentum (K_{ij} = 0).