Hotfix: Menu block php warning.

## Ready state: Yes
Added menu_block patch fixing php notice and updating another patch now pointing to imagex user.
Relates to: https://drupal.org/node/1885576

## Requirements & Dependencies
* Requires menu_block version 7.x-2.3

## Deployment Instructions
* Merge code
* Run `drush make` pointing to tag 7.x-1.0.3-dev20