Filename case in Linux

[thanasis57]

In Linux, the isotopedData.mat file could not be loaded since Hyscorean.m loads "isotopesdata" (line 871).
Problem solved by renaming bin/isotopesData.mat -> bin/isotopesdata.mat

[thanasis57]

Upon further testing, more functions call the isotopesData.mat (e.g. auxiliary line plotting), so a better way is to correct:
load isotopesdata --> load isotopesData