Periodic 3-D Voronoi tesselation

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To compile,  simply "cd src" then "make pv3d". This will produce the 'pv3d'
executable, which can then be run from the command line.

NOTE: For now, in order to edit the basis vectors, number of bases, etc. you
must make manual changes in the main() method inside of Pv3d.cpp. In the future
I plan to make this more automatic.

WARNING: This code has only been lightly tested! Before running any simulations,
double check that your structure looks as expected.

If you have any compilation issues or need help editing the main() method,
contact Josh Vita at [email protected]
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