Initialize case within export entire case controller.

[worleydl]

Description

Fix the binding of theCase within export entire case.

Motivation and Context

Issue #12 describes a scenario in which case export was failing. This change makes sure the value is set on load.

How Has This Been Tested?

Latest tests pass but no new tests have been written.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• [] New feature (non-breaking change which adds functionality)
• [] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• [] My change requires a change to the documentation.
• [] I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• [] I have added tests to cover my changes.
• All new and existing tests passed.

[epugh]

Manually tested.