Updates
* Added switch for changing probes
* Removed baseline from SLR fitting functions
* Added decay scheme for 31Mg and daughter corrections
* Fixed modify all recursion error
* Added probe species label
* Added 1000/T and chisquared draw options to parameter list
* Added run titles to fit files tab, and updated formatting of run numbers
* Fixed fit files resizing error
* Fixed legend for >8 files when fitting (no longer draws, catches warning)