Reorg continued

I think I've got using the brixlib-deps.js file worked out. And I've merged @ysahnpark 's ```1706-fix_testpage-1.div``` into this branch because I made some changes on top of his.

See the ```tests/index.html``` file and the ```demo/labelCalloutsTests.html``` file as examples.

Note in the js subfolder there are links for:
```
brixlib-compiled.js
brixlib-deps.js
d3.v3.min.js
pearson
closure-library
```

Here are the script tags I'm now using in the html files:
```html
<!--script src="js/brixlib-compiled.js"></script-->
<script src="js/closure-library/closure/goog/base.js"></script>
<script src="js/brixlib-deps.js"></script>
<script>
    goog.require('pearson.brix.BricLayer');
</script>
```