Hotfix: Fix panels_mini_ipe content pane notice.

## Ready State: Yes
Hotfix: Fix panels_mini_ipe content pane notice applying a patch.
Source: https://drupal.org/node/1966204

## Requirements & Dependencies
* requires panels_mini_ipe version 1.0-beta2 as in drupal-org.make file.

## Deployment Instructions
* Merge code.