[FEATURE] Added sort order for each column and faster filtering without re-paint

* Each package is now using an `ObjectProxy` with aliases and useful properties
* The search filter is debounced very 100ms
* The search is simply hiding `tr` by css classes which is much faster and does not need re-generating each row
* You can now order by clicking on each column, default sort order being the package name
```js
query: Ember.computed(function() {
  return this.set('query', this.get('inputQuery');
}).readOnly()
```

please note, I left off the DK, instead we should use the debounced method bellow to explicitly invalidate this property on debounce.