- Fixes bugs in drawing of error bars (sometimes not all the bars were drawn, depending on the respective sizes of the error bar and of the symbol).
- Implements Feature Request #2818 and also saves the path to the last visited folder used for loading images.
- Fixes Bug #9273 concerning Fit Polynomial. Enforces the check regarding the minimum number of points needed by GSL to perform a fit.
- Fixes/improves Bug #9275: Color assignment when plotting X,Y,Yerr sets.
- Fixes a crash occuring when plotting X,Y,Yerr sets with Vertical/Horizontal Bars style.