Retrieve data via HTTPS

[waldoj]

Right now, we're getting the data from http://www.scc.virginia.gov/clk/data/CISbemon.CSV.zip, but the server supports TLS. Requesting the data via HTTPS yields this error:

urllib2.URLError: <urlopen error [SSL: UNSUPPORTED_PROTOCOL] unsupported protocol (_ssl.c:590)>

Hence the present use of HTTPS. Figure out how to retrieve data via HTTPS.