Merge pull request #5 from jcchin/master

-1 or muj??? things are crazy
boo
got the drhd_dn working
erge branch 'master' of https://github.com/JustinSGray/thermo
cleaned up some prints
little more clean up of the test
more cleanup
drhs[-1]_dT done
vectorized a for loop
drhs[:-1]_dT done
drhs_dP done