v1.1 -- Improved robustness of filter reading code and fixed BEST_FROM_SIM

This release contains two main changes. First, the filter file is now read in a more robust way, so your custom FILTER.RES files that worked with FAST are also guaranteed to work with FAST++. Second, the BEST_FROM_SIM option now works correctly. In the previous version, using this option would produce correct fit parameters, but the chi2 would be infinite and the best-fit SEDs would be invalid. This is now fixed.

A smaller change concerns the MAKE_SED option. When enabling this option, the fitting stage is now disabled and the program only outputs the SEDs requested by the user. Grids and other output files are not modified.