2 More code cleanup with reorganizing libraries
3 Added --log and --exp to sdf-1
4 Allowed negative numbers for window levels in CGI interface
11 Better documented, coded raysum in-memory on on-disk options
14 Cleaned out library that wasn't being used by CTSim
15 Modified ctsim.cgi to read in configuration file ctsim.conf
18 First open source distribution for GNU/Linux
21 Converted to GNU/Linux
22 added MPI support via LAM library
25 Developed under MS-DOS and IBM EGA graphics