CRM-12733 fix : while case type is changed reset timeline to NO not respected
Merge pull request #977 from pratik-joshi/CRM-12733

Crm 12733
Merge branch '4.3' of git://github.com/civicrm/civicrm-core into CRM-12771
-- CRM-12771 some more fixes

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* CRM-12771: contribution pages with a zero amount are not generating receipts or creating contribution records
  http://issues.civicrm.org/jira/browse/CRM-12771