Initial commit for show detail pages

* Added basic route for show package
* Added basic detail.html view TODO: split it up into modules
* Added get calls in index.js related to show packages (showpackage and
* promotion)
* Passing in a null sort parameter in queryByIndex function will not
* append a sort parameter in the query. This was causing the query to fail
* due to 'PublishDate' not being an indexed property on all indices.