Use training data original ranks to create new rate rules.
Return the functionality of getting kinetics from training reactions.

Someone must have commented out the 'return'.
Include QM flag for generating initial species thermo, and species from rxn libraries.
Added explaination comment on averaged kinetics

Better explains for kinetics why we use geometric means for A
and arithmetic means for everything else.
Don't fail output html if nasa polynomial can't be evaluated at 298K.
Merge branch 'master' of github.com:GreenGroup/RMG-Py