Home page update

Just re-vamped my home page a bit, making terribly efficient use of all 10 (count them, ten) MB of webspace that Deutsche Telekom generously provides me free of charge with my call and surf "comfort package", as they humorously call it.

I've put up the most recent versions of my ENVI extensions, some of which actually work. The kernel PCA and kernel k-means routines, both of which use GPULib, seem stable enough. I'm still stuggling with a CUDA version of the Gaussian mixture classifier, unsure as usual if there's a bug in GPULib or if I'm to blame.

All of the programs and their subroutines have been churned through IDLDOC, but the list of warnings about partial or missing documentation is still very long. I want to fill in the gaps gradually as I have time.