Release V2.0.3

• Simulation mode was introduced (If no data is present, the current given parameters are plotted against an artificial dataset with intensity set to random numbers)
• timestamp of last successful fit added to status bar
• user input validation of xmin, xmax, hv, wfand all input tables (for background, components and limits) was introduced
• added an indicator light, depending on the status of limits (red: limit reached, yellow: limit reached but limit at zero, probably no problem, could simply mean that amplitude reached 0 during fit, e.g. component not necessary for fit, green: limit in use and everything is fine, grey: limits not in use)

several bugs fixed:

• asymmetry of gds-model was not set to fixed even if checked
• using active shirley bg, the exported bg in the .csv file was only the polynomial bg
• fixed problems with unsetting expressions for gamma and sigma parameter which was caused by inconsistencies in lmfitas discussed here.
• removed bug, that the choosen background was changed when the cross-section was set

Full Changelog: v2.0.2...v2.0.3