Tablefix

Hi Ted,

This branch actually implements two independent things (sorry!) .

1. Due to the way the function sorted() sorts alphanumerical strings, the latex table would fill incorrectly if one ran over more than 10 Ht bins.  This is now fixed by adding a function in utils.py that sorts as we would want to.

2.  I have added a function in ensemble.py that writes out the hadronic background yields from the fit in a format convenient to paste directly to our datacards.

Y.