S2PLOT version 2.4 released

[David Barnes]

S2PLOT version 2.4 is released and available from the S2PLOT web
pages: http://astronomy.swin.edu.au/s2plot/index.php?title=S2PLOT

This is an intermediate release offering a range of new features, as
well as some important system changes. New features include:

* a new open source S2PLOT application - s2anim - for displaying time-
series of point-like data
* functions to draw wireframe and transparent solid cubes
* functions to draw textured spheres with control over the orientation
of the texture

In total 23 new functions have been added and will shortly be
documented on the S2PLOT web site.

The architectural changes are more significant than feature additions
in version 2.4, as they are necessitated by the forthcoming Open
Source release of S2PLOT:

* the cygwin architecture has been removed
* gcc compilers versions >= 4.3 are required for 64-bit builds (to
support OpenMP usage within S2PLOT)
* the anaglyph, fisheye and interleave devices are now dynamically
loaded modules
* a few minor bug fixes and internal code reorganisation

We expect to release a source code version of S2PLOT 2.4 in October
2008.

- David.