Feature news panels config

## Ready State: (Yes)

This pull request is related to the following JIRA tickets: [LDC-230 Create panelized news article display page](https://imagex.atlassian.net/browse/LDC-230).

## Requirements & Dependencies

* Every content type that uses panelizer will use the 'full page override' setting. This requires the `page_manager_node_view_disabled` variable to be set to `0`. Because this is is required by multiple modules, we can't store it in this particular feature. This variable should be set during the installkit install process.

## Deployment Instructions

* Merge code.
* Enable module `imagex_news`: `drush en imagex_news`
* Clear caches with `drush cc all`

## Usage/Test Instructions

* News panelizer configured. Based on 'full page override'. All news node items are added trough the default panelizer panel, including references to a user image field and custom date format.