Gtk-0.3

Changes for version 0.3

Uses gtk+-1.0.5 or gtk+-1.1.1 (with glib-1.1.2).
Duplication of Rasterman's gnome-perl work for Gtk-1.1.1 support. This was not done by directly merging his code, so I may have left some things out, and I've not tested the result with every possible package.
Integrated some of PMC's patches.
Configuration mechanism cleaned up quite a bit, so that separate packages are quite modular, to the point that gtk-1.0 and gtk-1.1 are treated as separate packages on top of the base "gtk" package.
Version number sequence changed, yet again. Sigh.

Uses gtk+-1.0.4.
Started to add support for sensible struct types, as opposed to boxed types. (Basic idea is pass-by-value as opposed to pass-by-refernce.)
Version numbering changed to trip up less code. (Hopefully.)
Added some colormap & color support.
Added testpdl.pl program to demonstrate very crude use of PDL with previews. (Thanks to Marc Lehmann for the idea.)
Modified GtkColorSelectButton widget to prepend all internal variables with underscore.