CRM-13187 - CRM_Admin_Form_WordReplacements

CRM-13187 - CRM_Admin_Form_WordReplacements

Patch the admin UI for word-replacements so that it reads and writes
records in the civicrm_word_replacement table.  To make this work
without a total rewrite, we add two steps:

 * At the beginning, call the "civicrm_word_replacement=>civicrm_domain" logic
   (This logic is already written -- it's in the BAO.)
 * At the end, call the the "civicrm_domain=>civicrm_word_replacement" logic
   (This logic is already written -- copied from the upgrader to the BAO.)

This is inefficient but much simpler than rewriting the UI.

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* CRM-13187: hrui: Change breadcrumb from "CiviCRM" to "CiviHR"
  http://issues.civicrm.org/jira/browse/CRM-13187