allow creation of new case type CRM-14480

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* CRM-14480: Implement "Edit Case Type" screen
  https://issues.civicrm.org/jira/browse/CRM-14480
minor fixes CRM-14480

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* CRM-14480: Implement "Edit Case Type" screen
  https://issues.civicrm.org/jira/browse/CRM-14480
new case type fixes, CRM-14480

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* CRM-14480: Implement "Edit Case Type" screen
  https://issues.civicrm.org/jira/browse/CRM-14480
Merge pull request #3387 from kurund/CRM-14480

CRM-14480