Added a periodic piecewise spline.
Got a Carleson-like grid to work.
This grid behaves more like I want it to.
Disk now can produce a Carleson grid.
Took out reliance on conversion to 8-bit integer, which was silly to begin with.
Re-indented disk, disked and splinepwp. Added Carleson grid to diskex.
Removed temporary test file.
Merge pull request #22 from ehkropf/ev-devel

Adding some things.