CRM-14300 fix - Slow query - participant report

https://issues.civicrm.org/jira/browse/CRM-14300
Minor change
Merge branch 'CRM-14300' of github.com:monishdeb/civicrm-core into CRM-14300

Conflicts:
	CRM/Upgrade/Incremental/sql/4.5.alpha1.mysql.tpl
	sql/civicrm_generated.mysql

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* CRM-14300: Slow query - participant report
  https://issues.civicrm.org/jira/browse/CRM-14300
Merge pull request #3005 from kurund/CRM-14300

CRM-14300