Feature: LDC-549: Featured article

## Ready State: Yes

#### JIRA Reference: https://imagex.atlassian.net/browse/LDC-549

Featured article. Add Nodequeue for Featured article.

## Deployment Instructions

* Merge code.
* Enable module `fe_nodequeue`: `drush en fe_nodequeue`
* Install nodequeue : `drush fr imagex_content_featured.`
* Clear caches with `drush cache-clear all`

## Usage/Test Instructions

* Browse to `admin/structure/nodequeue`, click view nodequeue `Featured`