CRM-12915 - hrcareer, etal - Only show "View Revisions" link in the table view (not the add/edit details view)
CRM-12915 - hrcareer, etal - Only show "View Revisions" link if logging is active
Cleanup/Auto-format
Merge pull request #69 from civicrm/master-rev-link

CRM-12915 - Hide "View Revisions" link when unavailable