MISC: adding radioactivity to install kit from linux

## Ready State: Yes

This pull request is related to the following JIRA tickets: https://imagex.atlassian.net/browse/LDC-119

## Requirements & Dependencies

* Features
* Radioactivity Module

## Deployment Instructions

* Merge code.

## Usage/Test Instructions

* Ensure radioactivity module is downloaded as part of imagex_installkit buid
* Visually view the changes on the homepage.