Bring back version 1.31, with an important modification - terminate if the temperature gets below zero, or becomes NaN (which can happen if the solution stabilizes during melting.)
Bring back version 1.31, with an important modification - terminate if
the temperature gets below zero, or becomes NaN (which can happen if
the solution stabilizes during melting.)

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome