TLS 1.1 and TLS 1.2 fix

Due to a misconfiguration in our retrieval system we have not been able to ingest feeds using only the TLS 1.1 or TLS 1.2 encryption protocols. Since most encrypted sites still serve TLS 1.0, or even SSL 3.0, the misconfiguration has most likely not been noticeable in our ingestion statistics, but we expect to see more sites deprecating older protocols in favor of TLS 1.2.

The configuration has been updated and we are all feeling a bit more secure.