Two new energy functions added. SIGMOID and BOUNDED functions as described in Ovchinnikov et al (2015). Associated with that extra information added to energy_functions module
Two new energy functions added. SIGMOID and BOUNDED functions as described
in Ovchinnikov et al (2015). Associated with that extra information added
to energy_functions module

linucks/ample,rigdenlab/ample,linucks/ample,rigdenlab/ample