Fixed transfer probability matrix generation/normalization in rmg.unirxn.
Fixed transfer probability matrix generation/normalization in rmg.unirxn.

A long time ago I found that I needed to apply a numerical trick to get the
transfer probability matrix to work properly. Changing the direction in which
the normalization constants are calculated (upper left to bottom right rather
than vice versa) eliminates the need for this trick.

chatelak/RMG-Py,KEHANG/RMG-Py,comocheng/RMG-Py,nickvandewiele/RMG-Py,pierrelb/RMG-Py,nickvandewiele/RMG-Py,faribas/RMG-Py,comocheng/RMG-Py,chatelak/RMG-Py,enochd/RMG-Py,faribas/RMG-Py,nyee/RMG-Py,enochd/RMG-Py,KEHANG/RMG-Py,pierrelb/RMG-Py,nyee/RMG-Py