Update Slot linking/following to check foam.util.is(a, b) rather than foam.util.equals().
Update Slot linking/following to check foam.util.is(a, b) rather than
foam.util.equals().

foam-framework/foam2,foam-framework/foam2,TanayParikh/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,jacksonic/vjlofvhjfgm,TanayParikh/foam2,foam-framework/foam2,jacksonic/vjlofvhjfgm,TanayParikh/foam2,TanayParikh/foam2,foam-framework/foam2