README.change_history

###############
Change history:
###############
June 2015
* HF to kcal unit conversion error (621 instead of 627) corrected
* ameobna_v2_new_head.prm updated to remove the opbendunit, the opbend force constants now 71.94x bigger than before (changed in valence.py). This is consistent with amoebapro2013.prm and amoeba09.prm.
July 3, 2015
Mono Cl vdw parameters updated according to JPCB 2014, 118 (24), pp 6456–6465.
Can NOT detect multiple Cl and assign the corresponding parameters yet