Therion 0.3.0

Hi everybody! Therion 0.3.0 is available. Substantial changes: * Therion goes 3D: vrml, 3dmf and native therion formats with passages reconstructed from 2D maps * completely new Win32 installation with TeX and Tcl/Tk included XTherion: * 3D model viewer added * Map editor: only the visible part of background images is zoomed (less memory consumption and speed improvement) * Map editor: support for JPEG and PNG images if tkImg extension is installed M.