First attempt at implementing adiabatic cooling in macro atoms, not yet tested
Upstream merge to bring adiabatic branch up to date.

Merge branch 'dev' of https://github.com/agnwinds/python into adiabatic
created istat record of adiabatic cooling kpkt destruction, P_ADIABATIC
added reporting line in spectra.c to report on P_ADIABATIC frac
increased NSTAT to 10
Merge pull request #65 from jhmatthews/dev

Fix for q_recomb returning NAN
Upstream merge to bring in q_recomb fix.

Merge branch 'dev' of https://github.com/agnwinds/python into matom_adiab
included istat check in trans_phot, error checks matom and more commenting in adiabatic_cooling function
Fixed units of adiabatic cooling and added cooling_adiabatic to macro pointer
tidied up a bit
Merging for adiabatic kpkt destruction changes.

Merge branch 'matom_adiab' into dev