Commented out the choice user_stor() at the eval prompt,
because it is not in the current version.
Added "arb units" to the yield plots where appropriate.
Added a method to call elast accessible from main.
Added sloppy prototype to calculate exit energy as a function
of projectile/recoil angle using elast stopping power.
Updated pop-up warning about checksum that doesn't match an official
release.  It now says that user could have a development version.
Added Rutherford information:
* Added function particle_counts_from_integrated_rutherford()
* Stores the integrated Rutherford cross section from gosia.out
* Retrieves it for simulation and calculates total particle counts
* Adds total Ruth. c.s. and particle counts to simulation report
Added singles count rate to simulation report.
Improved simulation table header.
* Added Rutherford counts, total dose & rates
* improved number formats
Added a .gitignore file
Changed the debug button:
* It now executes a file from the Rachel installation tree
* The directory of that file is ignored
Took rachel logo jpg out of git.
Fixed bug that cause some integration operations to fail.
* Parsing of Rutherford line was not possible in the "evaluate" step.