[ready-for-core-team-review]CRM-16189, added code to create entries in accounting...

[ready-for-core-team-review]CRM-16189, added code to create entries in accounting tables for defe… (#8576)

* CRM-16189, added code to create entries in accounting tables for deferred revenue

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, added code to set recognition date for membership

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, added code to create entries for revenue recognition

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* --CRM-16189, removed function calling

* CRM-16189, updated function to ignore deferred trxns entries

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, added code to create entries for deferred revenue for event registration

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, store financial item DAO values in variable and return variable

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, added code to create financial trxn entries

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, removed white space

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, fixed notice error

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* CRM-16189, changed class name

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* CRM-16189: Improve support for Accrual Method bookkeeping
  https://issues.civicrm.org/jira/browse/CRM-16189

* --CRM-16189, fixed code for updating of line item