change source path for loading facebook javascript

Hi,
I am not sure how best to submit this question and possibly bug since I don't see the steroids addons js in its own repo.  I am sending this request with the understanding that you should probably patch this in source.

I noticed a couple traces from my app when I included the addons, it appears that the path to load these JS files isn't correct.  Can you take a look?

Here are the traces-
```
2014-03-03 10:42:41.665 Simulator[28964:80b] ERROR: Possibly unhandled http://localhost/components/steroids-addons/index.js:8242:7
tryCatchApply@http://localhost/components/steroids-addons/index.js:5010:24
Promise$_callSpread@http://localhost/components/steroids-addons/index.js:2409:25
Promise$_callHandler@http://localhost/components/steroids-addons/index.js:2417:29
Promise$_settlePromiseFromHandler@http://localhost/components/steroids-addons/index.js:2437:30
Promise$_settlePromiseAt@http://localhost/components/steroids-addons/index.js:2619:39
Promise$_fulfillPromises@http://localhost/components/steroids-addons/index.js:2720:30
Async$_consumeFunctionBuffer@http://localhost/components/steroids-addons/index.js:269:16
Async$consumeFunctionBuffer@http://localhost/components/steroids-addons/index.js:242:36
Promise$_Scheduler@http://localhost/components/steroids-addons/index.js:4298:19
dispatchEvent@[native code]
dispatchMessageEvent@http://localhost/components/steroids-js/steroids.js:2613:32
global code@http://localhost/views/walkthrough/walkthrough.html:1:42
```

and

```
2014-03-03 10:42:40.416 Simulator[28964:80b] ERROR: Possibly unhandled http://localhost/components/steroids-addons/index.js:8257:11
http://localhost/components/steroids-addons/index.js:5140:31
subscribe@http://localhost/components/steroids-addons/index.js:6711:46
onValue@http://localhost/components/steroids-addons/index.js:5742:28
http://localhost/components/steroids-addons/index.js:8274:30
tryCatch1@http://localhost/components/steroids-addons/index.js:4990:23
Promise$_callHandler@http://localhost/components/steroids-addons/index.js:2421:22
Promise$_settlePromiseFromHandler@http://localhost/components/steroids-addons/index.js:2437:30
Promise$_settlePromiseAt@http://localhost/components/steroids-addons/index.js:2619:39
Promise$_fulfillPromises@http://localhost/components/steroids-addons/index.js:2720:30
Async$_consumeFunctionBuffer@http://localhost/components/steroids-addons/index.js:269:16
Async$consumeFunctionBuffer@http://localhost/components/steroids-addons/index.js:242:36
Promise$_Scheduler@http://localhost/components/steroids-addons/index.js:4298:19
dispatchEvent@[native code]
dispatchMessageEvent@http://localhost/components/steroids-js/steroids.js:2613:32
global code@http://localhost/views/friends/friends.html:1:42
send@[native code]
iOSExec@http://localhost/cordova.js:970:25
logLevel@http://localhost/plugins/org.apache.cordova.console/www/logger.js:233:13
__onDeviceReady@http://localhost/plugins/org.apache.cordova.console/www/logger.js:348:24
fire@http://localhost/cordova.js:747:28
http://localhost/cordova.js:220:53
```

The line 8257 trace only fires with `cordova.js` it appears while the 8242 one fires on every page of my app.

8242 is the FB.init block (second line below)-
```
ready = Promise.join(configuredAppId, pluginready).spread(function(appId, FB) {
    FB.init({
      appId: appId,
      nativeInterface: CDV.FB,
      useCachedDialogs: false
    });
    return FB;
  });
```

8257 is the FB.event.subscribe below-
```
facebookEventStream = function(eventName) {
    return pluginready.then(function(FB) {
      return Bacon.fromBinder(function(sink) {
        var subscriber;
        subscriber = function(event) {
          return sink(new Bacon.Next(event));
        };
        FB.Event.subscribe(eventName, subscriber);
        return function() {
          return FB.Event.unsubscribe(subscriber);
        };
      });
    });
  };
```

Also (cosmetic), it is named steroids.addons.js here (and in various examples) but the latest version that I have is actually just index.js included in the package.  It might be helpful to update the examples, docs, and anywhere else.