Reads pickle and gets files for all chromosomes.
T-testing returns pval as a string rather than a float
Pval and events are written as a list of size 1.

Writes the row by asking if the list is greater than 1 rather than
checking if it is a string.

This just makes things easier when writing to file

Multithreading now updates the fnames_dic so that it can be saved to a
pickle file.