CRM-13860 - Strict warning: Non-static method Mail_RFC822::parseAddressList() should not be called statically

http://issues.civicrm.org/jira/browse/CRM-13860
Merge pull request #37 from dlobo/CRM-13860

CRM-13860 - Strict warning: Non-static method Mail_RFC822::parseAddressList() should not be called statically