Replace _lookupGetter_ and _defineGetter with standards-based equivalents.
Replace _lookupGetter_ and _defineGetter with standards-based equivalents.

        Ref: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/__lookupGetter__

eloquence/node-config,jdassonvil/node-config,lykmapipo/node-config,joshparolin/node-config