ISS Transit Prediction Change Log
=================================
V5.2:  Updated CelesTrak ISS Supplemental URL

V5.1:  Fixed issue when loading .cfg file when metric = yes.
       Removed "meters if metric" from .cfg file elevation comment

V5.0:  Added capability for users to select any transit satellite by NORAD ID.
       Added satellite.cfg file to store user added satellites.
       Changed user and options file format from binary to text.
       Fixed planetary transit path widths to take into account
       apparent diameter of planet.
       Updated calculation of Delta-T. Should be good until 2050.

V4.13: CelesTrak Supplemental TLE is now the default download source

V4.12: NASA has taken spaceflight.nasa.gov offline.  They are no longer
       providing Two Line Elements.
       This update adds an option to use NASA provided ephemeris state vector data
       from data.nasa.gov to generate Two Line Elements.
       The NASA option requires additional TLE.iss data to be downloaded. 
       Refer to the optional data section in Help.
       Options have also been added to use CelesTrak TLEs.
       System Requirement update: Java 1.8

V4.11: Fixed end of year rollover issue

V4.10: Fixed spaceflight.nasa.gov URL

V4.9: Added User TLE file switch (-t) to Command Line Mode
      Updated www.space-track.org access to accept session cookie
      Help updated

V4.8: Updated to add Lunar Sunlit/Shadow options
      Format of options file updated (User required to re-enter options on first run)
      Help updated

V4.7: Updated goo file generation to use default Google Maps user interface
            which includes option for displaying a "Terrain" Map
      Minor help page updates

V4.6: Cleaned up warnings in source code
      Build since V4.5 only work with Java Runtime 1.6 or better

V4.5: Updated digital signature for another year
      Updated to the latest versions of the following libraries:
        Java 3D 1.5.1 (vecmath)
        Java Help 2.0_05
        Swing Worker 1.2
        Swing Layout 1.0.3

V4.4: Now supports command line mode with the following options:
      java -jar ISSTransitPrediciton.jar
            -d <PredictionDirectory>
            -f <UserFile>
            -o <OutputPredictionFile>

V4.3: Updated digital signature for another year

V4.2: Fixed bug when attempting to generate pre-launch Space Shuttle
      predictions

V4.1: Changed maximum Solar Elevation for Planetary Transits from
      -8 degrees to -3 degrees
      Fixed "Path Width" label in plot files
      Added confirmation window when creating prediction directory for the
         first time

V4.0: Added Spack-Track.org direct login/TLE retrieval capability
      Fixed problem in plot files for user specified km

V3.8: Added support for transits by satellites other than the ISS.
      Added support for retrieving the current Space Shuttle mission Two
         Line Elements directly from the NASA website.
      Added satellite selection to Transit Satellite/TLE source selection
         window:  ISS, Space Shuttle or Satellite from user TLE file.
      Added satellite selection/TLE Source/transit bodies/min elevation angle
         to prediction text file.
      Updated the Help Set for new capabilities
      
V3.7: Added prediction options which allows the user to select which planets
         are used for transit prediction generation
      Added prediction options which allows the user to select the minimum 
         ISS transit elevation altitude
      Updated the Help Set for new prediction options window
      Fixed problem when generating plot files for various European locales
      Fixed problem when user specified an empty TLE file

V3.6: Added indication if NASA TLE file has been updated since last run
      Added capability for user to select TLE file source from local computer
      Added TLE Span and TLE Age indications
      Added Warning if Two Line Elements are out-of-date
      Programs now displays a warning window (in addition to the text in the
         information window) for the more serious warnings
      Old TLEs are now properly removed from downloaded NASA TLE file
      Corrected a problem in which sometimes the prediction would complete
         prematurely.
      Updated the Help Set for new capabilities

V3.5: Changed the view prediction window font from "Courier New" to the more
         universally compatible "Monospaced", 
      Now allow the optional DEM filenames to be either UPPER or lower case to
         be more compatible on operating systems where filenames are case
         sensitive, 
      Program now checks the size of the DEM file, and prints out a warning
         message if it's not correct,

V3.4: Added capability to view the prediction text file from the main window.

V3.3: Initial Release.