CRM-11160 - Set CURLOPT_SSL_VERIFYHOST based the system's general "verifySSL" option

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* CRM-11160:
  http://issues.civicrm.org/jira/browse/CRM-11160
Merge pull request #1098 from totten/4.3-CRM-11160

CRM-11160 - Set CURLOPT_SSL_VERIFYHOST based the system's general "verifySSL" option