Removes gulp-browserify adds new notifications and some cleanup

Fixes issues in #6 

I've done a couple of things here:

* Using the new Elixir notifications, so there is just less you need to write for that now
* removed gulp-browserify and gulp-load-plugins
* removed baseDir -- made srcDir an option so if a user wanted to use a different resource directory they can
* added the ability to rename your new bundle
* added the ability to rename your new bundle's name

Let me know what you think.  Thanks!
Should pass options to browserify, e.g.

```js
var b = browserify(filename, options);
```

or simplify

```js
return browserify(filename, options).bundle();
```