CRM-12882 - Allow all admins to view payment processors page. Clarify error message when try to add or edit a payment processor without the new permission.

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* CRM-12882:
  https://issues.civicrm.org/jira/browse/CRM-12882
CRM-12882 - Change fatal to statusBounce.

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* CRM-12882:
  https://issues.civicrm.org/jira/browse/CRM-12882
Merge pull request #3296 from davecivicrm/CRM-12882

Crm 12882