2010 Jun 1: Pyxplot 0.8.1
This release has no major new features, but fixes several significant bugs in version 0.8.0.
Mathematical functions time_fromunix(), time_unix(), zernike() and zernikeR() added.
Bug fix to the ticking of linked axes.
Bug fix to the ticking of axes with blank axis tick labels.
Makefile and configure script improved for portability.