Date       Version
 5 Oct 93   1.0    initial release
 7 Oct 93   1.0.1  minor correction to best_mode_256 table
 8 Oct 93   1.1    hacked around an (undocumented?) problem concerning odd
                    logical_byte_widths and 16M modes
                   added missing JPEG header files to distribution
23 Oct 93   1.2    included jpeglib directory by default in Makefile
                   added 1280x1024 modes
                   added GIF/PPM/TARGA support using 16M/32K modes
24 Oct 93          added greyscale PPM colour map setting
                   corrected -F availability for GIF/PPM/TARGA
                   added colour map creation/lookup and changed GIF to use
                    256 modes and a colour map
26 Nov 93   1.3    fixed 256 mode colour lookup to allow any 256 colours
                   added libgr shared library support to Makefile
27 Nov 93          added image size doubling in x direction
10 Dec 93          reduced double x comparisons
                   added call to vga_init() so we don't run as root for long
12 Dec 93   1.3.1  quiet becomes quiet again
19 Mar 94   1.4    PIX_ALIGN changes for Mach32 (and other) cards
                   added sequential showing of files
                   added slideshow option
                   added cycle option
24 Mar 94   1.4.1  fixed GIF initialization for multiple files
                   cleaned up screen clearing
25 Mar 94   1.4.2  fixed screen clearing
 5 Apr 94   1.4.3  worked around svgalib 1.03 bug
                   adjusted handling colour map entry 0
15 Apr 94          fixed libgr shared library support in Makefile