fixed div-by-0 in CardiacThicknessParameterAux.C for nodes that reside on inner and outer boundary at the same time (happens where boundaries are in contact w each other)
fixed div-by-0 in CardiacThicknessParameterAux.C for nodes that reside on inner and outer boundary at the same time (happens where boundaries are in contact w each other)

apc-llc/ewe,apc-llc/ewe,apc-llc/ewe,apc-llc/ewe,apc-llc/ewe