ACL Core, add a way for unit tests to flush in-function cache
Unit test on group selector AJAX call - add ability to return result for unit test
test fix Only variables should be assigned by reference

/var/www/drupal/sites/default/modules/civicrm/civicrm-core/CRM/ACL/BAO/ACL.php:541
Add function to set up an ACL for a test
comments & whitespace tidy ups
Merge pull request #2971 from eileenmcnaughton/Cleanups

Cleanups this includes setup to allow unit tests (not in this PR) to run