Object.create(undefined) should throw an exception

[rwaldron]

#716 motivated me to check this. The existing issue re: null and undefined are treated as the same by Lua, results in wrong semantics for special cases:

// this creates a null proto object
console.log(Object.create(null));

// this should throw an exception
console.log(Object.create(undefined));

rwaldron at nova in ~/codez/javascript
$ ~/clonez/runtime/out/Release/colony object.create.js
{
}
{
}
rwaldron at nova in ~/codez/javascript
$ node object.create.js
{}

/Users/rwaldron/codez/javascript/object.create.js:2
console.log(Object.create(undefined));
                   ^
TypeError: Object prototype may only be an Object or null
    at Function.create (native)
    at Object.<anonymous> (/Users/rwaldron/codez/javascript/object.create.js:2:20)
    at Module._compile (module.js:456:26)
    at Object.Module._extensions..js (module.js:474:10)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:312:12)
    at Function.Module.runMain (module.js:497:10)
    at startup (node.js:119:16)
    at node.js:929:3