Feature: Update ckeditor profile to use the theme's css.

## Ready State: Yes

Changes one settings so that the ckeditor profile uses the theme's css.

## Requirements & Dependencies

* None

## Deployment Instructions

* Merge code.
* Revert feature `imagex_wysiwyg_profiles`: `drush fr imagex_wysiwyg_profiles`
* Clear caches with `drush cache-clear all`

## Usage/Test Instructions

* Check the CSS section of the ckeditor profile to make sure it's set to theme css