Remove SSLv3 dependency and specify TLSv1.2 due to POODLE vulnerability

MPX recently disabled SSLv3 as a result of the POODLE vulnerability [http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-3566].  Since tpdata required SSLv3 applications using tpdata couldn't connect.  I've updated the library to use TLSv1.2.