CRM-10760 : adding lcMessages to CRM.config setting so that can be used inside .js file

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* CRM-10760: Upgrade to jQuery UI autocomplete
  http://issues.civicrm.org/jira/browse/CRM-10760
Merge pull request #1624 from pratik-joshi/CRM-10760

CRM-10760 : adding lcMessages to CRM.config setting so that can be used inside .js file