civicrm/civicrm-core — pull request #2391 by colemanw (2014-01-22 01:42:57+00:00)
Title: Mass replace CRM_Utils_Array::value() with !empty for performance & readability

I've been threatening to do this for a long time. Here it is.
http://issues.civicrm.org/jira/browse/CRM-14106