CRM-14884 - Rename report instance schema file.

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* CRM-14884:
  https://issues.civicrm.org/jira/browse/CRM-14884
Merge pull request #3569 from davecivicrm/CRM-14884

CRM-14884 - Rename report instance schema file.
create smartgroup test
fix for failing test search result
additional group test
comment fix
remove incorrectly added (duplicate) test (only just added)
Merge pull request #3570 from eileenmcnaughton/ssgrouptest

Add Smart group test - CRM-14887
api_v3_CaseTypeTest - Change example definition from XML to array().
Merge pull request #3575 from totten/master-casetype-testfix

api_v3_CaseTypeTest - Change example definition from XML to array().