test fixup- changed fn signature doesn't expect 'NULL'

Test improvements, minor fix on mailing API  (Closes CRM-13512)

add tests for exising behaviour on membership_type, membership_type_id fields (so redundant can be removed safely

Rebuilt generated since last merge version was missing sample contacts.

CRM-12911 - CRM.Backbone.sync - Add mechanism for API-assisted duplicati...

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* CRM-12911: Implement "Duplicate" feature for Jobs
  http://issues.civicrm.org/jira/browse/CRM-12911

CRM_Core_BAO_Block - Fix API regressions

another fix

-- fixed notice error for CRM-13004

fixed wrong PseudoConstant call

--fixed typo for CRM-12972

-- Fixed formatting and code fix for CRM-12694, removed mime_content_typ...

fixed wrong PseudoConstant call
This fixes a fatal error when trying to create a new Accounting Batch (Field 'status_id' doesn't have a default value).

CRM-12972 updated IPN test now fix has been merged in

CRM-13090 uniqueness on title + activity type + campaign (optional). 

CRM-13149 add relationship type filter to relationship api (both paths)

fix typos

CRM-12874

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* CRM-12874: Rename civicrm.settings.php.tpl so it uses a different suffix from Smarty templates
  http://issues.civicrm.org/jira/browse/CRM-12874

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* CRM-12874: Rename civicrm.settings.php.tpl so it uses a different suffix from Smarty templates
  http://issues.civicrm.org/jira/browse/CRM-12874

CRM-13127

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* CRM-13127: test should include isset in API contact.php
  http://issues.civicrm.org/jira/browse/CRM-13127

CRM-12639-improvements : code improvements which also fixes the failing tests https://test.civicrm.org/job/CiviCRM-master-git/LABEL=debian6,SUITE=api_v3_AllTests/397/

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* CRM-12972: No receipt sent for PayPal Pro Recurring Donations
  http://issues.civicrm.org/jira/browse/CRM-12972

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* CRM-13004: Create discount transaction fails for event price sets that do not use radio buttons
  http://issues.civicrm.org/jira/browse/CRM-13004

-- Fixed formatting and code fix for CRM-12694, removed mime_content_type since we have only 2 export format CSV and IIF and both have text/plain mime_content_type

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* CRM-12694: Eliminate/replace call to function mime_content_type()
  http://issues.civicrm.org/jira/browse/CRM-12694

CRM-12639-improvements : code improvements which also fixes the failing tests https://test.civicrm.org/job/CiviCRM-master-git/LABEL=debian6,SUITE=api_v3_AllTests/397/