reset id of erased bodies; enabling this: b=Body(); O.bodies.erase(O.bodies.append(b)); O.bodies.append(b)
turn DeprecationWarning (not displayed) into UserWarning (displayed) since the error messages where cryptic
no indexing of blocked cells in PFV
decrease verbosity of blocking PFV cells
DFNFlow unblock cells as fractures reach them + additional attributes in JCFPM