3/2/2005 version 0.4 Add command-line options top multipht for more flexibility in scripted operation. Solvepht now fits a model to sigma-vs-mag, uses model to mark stars as variable, prints additional columns of information in output files. 12/24/2004 version 0.3 Replaced Numerical Recipes routines with GNU Scientific Library functions 11/21/2004 version 0.2 Increase number of stars and images permitted in solution now write number of good stars per image into multipht.out solvepht now builds a matrix solution including only those stars and image which should be part of solution (old version placed stars and images into matrix with zero weight if they were to be ignored) 11/08/2004 Initial release, version 0.1