CRM-14181 fixes, deleted unused getEnums()

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* CRM-14181: migrate enums to varchar in schema for all tables
  http://issues.civicrm.org/jira/browse/CRM-14181
CRM-14181 fixes, deleted tsEnum() and code fixes

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* CRM-14181: migrate enums to varchar in schema for all tables
  http://issues.civicrm.org/jira/browse/CRM-14181
CRM-14181 fixes, deleted addDisplayEnums() and code fixes

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* CRM-14181: migrate enums to varchar in schema for all tables
  http://issues.civicrm.org/jira/browse/CRM-14181