-- fix for CRM-13450

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* CRM-13450: enhanced logging detail overlay broken
  http://issues.civicrm.org/jira/browse/CRM-13450

This break was introduced because .live() was replaced by .on(). But, .on() was not supporting dynamic content(the change log table built from ajax call on the contact summary page). So, for it to support dynamic content, I passed "document" as the parent within which it will look for the child i.e. "a.crm-summary-link".