GnuPlot Launcher

1. Install from the Update Site.
2. Configure the location of gnuplot and 1d and 2d plot commands using the preferences page.
3. Files with a suffix of ".gp" are rendered as 1d plots.
4. Files with a suffix of ".2d.gp" are rendered as 2d plots.
5. Files with a suffix of ".gps" are standalone gnuplot scripts.
6. If a file named "gnuplot.txt" is present in the same directory as a file ending with ".gp", it overrides the display function specified in preferences.
7. If a file named "gnuplot.xxx.txt" is present in the same directory as a file ending with ".xxx.gp", it overrides the display function for that file.