Bugfix: LDC-378 - Undefined index: render element in drupal_find_theme_templates fix

## Ready State: Yes

Bug fix for https://imagex.atlassian.net/browse/LDC-378

Tried to fix in an alter hook but error persisted so had to patch the answers module.

## Requirements & Dependencies

Requires patch from https://github.com/imagex/imagex_patches/pull/51

## Deployment Instructions

* Merge code.

## Usage/Test Instructions

* Run the drupal-org.make and ensure patch is applied. Can use temp url for testing https://raw.github.com/thomjjames/imagex_patches/bugfix/answers_module/contrib/answers/answers_base-hook-fix.patch