#748 - fixing error in python 3.6 (conda) that fails to create the progress bar. transformed the version-adaptive progressbar call into a separate member function
#748 - fixing error in python 3.6 (conda) that fails to create the progress bar. transformed the version-adaptive progressbar call into a separate member function

OceanPARCELS/parcels,OceanPARCELS/parcels