Don't get kinetics during KineticsFamily.generateReactions().
Don't get kinetics during KineticsFamily.generateReactions().

It turns out we can't unambiguously determine which direction (forward or
reverse) to get the kinetics of for families that are their own reverse
(e.g. H_Abstraction) without the thermodynamics of the species involved.
Since we don't have that information within the KineticsFamily, we will
defer the kinetics estimation to a separate step.

Hopefully the kinetics estimation step can be made embarrassingly parallel.

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