Bug Fix: Allow longer source URLs for redirect module

## Ready State: Yes

The redirect module limits source URLs to 255 characters. The patch introduced to the installkit changes the schema definition to a text type field for the source URL, allowing for longer source URLs.

## Requirements & Dependencies

* The dependent patch has been merged into imagex_patches.

## Deployment Instructions

* Merge code.
* The patch should be applied automatically to future builds.

## Usage/Test Instructions

* Review the structure of the redirect database table after building a new site from the installkit. The source field should be 'mediumtext' type.