CRM-15234 - prevent loss of responsive HTML markup due to CIVICRM_MAIL_SMARTY being enabled. NOTE: There is no easy way to fix this for upgrades since we do not have a known DB handle for the sample msg_template rows.

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* CRM-15234:
  https://issues.civicrm.org/jira/browse/CRM-15234
CRM-15234 - Add literal tags to sample responsive templates and regen new generated.mysql.

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* CRM-15234:
  https://issues.civicrm.org/jira/browse/CRM-15234
Merge pull request #4323 from davecivicrm/CRM-15234

Crm 15234