additions in September 1999:

 Sol_Temp  Radiative balance  -- temperatures on insolated bodies
 Star_pos  Angular height, azimuth, etc. of a point 
           (or star in the Bright Star Catalogue)


 dis_comm  discards comment lines from a *.ps file
 vlnka2    replaces spaces by &nbsp, after specified one-letter prepositions
         or by ~ (default) 
         (a slight modification of Vlnka.pas, offered by CSTUG)


 graph_tx  text replacement of unit graph (very simple, only outtext does 
         something)

 b2d       Babylonian to decimal conversion, like dd:mm:ss to degrees
 cutbe     Output is a part of input file starting and ending at some % of its length

 psychro   dry and wet temperature to humidity
 rel2abs   relative humidity and Celsius temperature to Humidity Absolute
