Update foam.json.parse to gracefully handle things like null/undefined.
Update foam.json.parse to gracefully handle things like null/undefined.

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