Two bugs deleted:
(1) The addition of new Validation file name after right click on the Validation sheet was not
linking the new file to the Validation variable. This is now corrected.
(2) When adding a simulaition variables using parentesis in the name like Soil Resp (no roots)
was not done correctly. Efforts to run the model with the Soil Resp (no roots) was causing a crasch of the simulation.