[ready-for-core-team-review]CRM-16189, added code to validate relationship before creating entrieā¦ (#8578)
* CRM-16189, added code to validate relationship before creating entries in civicrm_entity_financial_account
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* CRM-16189: Improve support for Accrual Method bookkeeping
https://issues.civicrm.org/jira/browse/CRM-16189
* CRM-16189, fixed CRM test
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* CRM-16189: Improve support for Accrual Method bookkeeping
https://issues.civicrm.org/jira/browse/CRM-16189
* --CRM-16189, added return defination