Set parsedTitle back on cell

After the title attribute is parsed for the header cells set that parsed title back on the origin cell attributes. 

```html
<table ng-table>
    <tr ng-repeat="one of many">
        <td title="'TITLE' | translate"></td>
    </tr>
</table>
```

If you hover over body cells the HTML title is literally `'TITLE' | translate`.  This PR will put the parsed title back in so when a user hovers over a cell they see the same value as the column header.