Hi Guix,

these updates are straight-forward, but I wanted to run them by you
anyway, because numpy and pandas seem pretty important.

The numpy version is Guix was released in Nov 2014, so I think it’s time
for an update.  I needed a later version to upgrade fastlmm (which was
my primary goal).

(I think both fastlmm and pysnptools should be moved to
bioinformatics.scm.)

~~ Ricardo