Fixed some important bugs that affected things if there were multiple g-vectors inside an image when doing the fitting.

I also changed around a couple parameters which generate better windows
now. This now creates spots 10x better.

I also wrote a function that checks each spot image (after windowing)
for multiple g-vectors. It works quite well.

There is some bug that occurs the first time you run the spot fitting
algorithm, I'll have to figure out what it is later.

I am quite happy with this now! I am much more confident in the spots it
produced for the Zr Cu Al t3 model. I still need to go back through and
check all the t1 and t2 spots to make sure they are good. After that, if
all looks good, I will be satisfied.

There were a couple spots that were not fit great, but I wasn't even
able to get a better fit by hand so I just left them. Luckily I know
which ones they are, because one of the functions prints them out as
mentioned above.