title: OpenSSL can't establish SSL connection because unsupported protocol
body: <p>I'm trying to build OpenCog from <a href="https://wiki.opencog.org/w/Building_OpenCog" rel="nofollow noreferrer">here</a> and when I issue this command </p>
  
  <pre><code>octool -rdcpav -l default
  </code></pre>
  
  <p>It builds everything but it then gets to the step of installing Link-Grammar and this happens</p>
  
  <pre><code>[octool] Installing Link-Grammar....
  --2020-06-13 10:09:36--  http://www.abisource.com/downloads/link-grammar/current/
  Resolving www.abisource.com (www.abisource.com)... 130.89.149.216
  Connecting to www.abisource.com (www.abisource.com)|130.89.149.216|:80... connected.
  HTTP request sent, awaiting response... 302 Found
  Location: https://www.abisource.com/downloads/link-grammar/current/ [following]
  --2020-06-13 10:09:37--  https://www.abisource.com/downloads/link-grammar/current/
  Connecting to www.abisource.com (www.abisource.com)|130.89.149.216|:443... connected.
  OpenSSL: error:1425F102:SSL routines:ssl_choose_client_version:unsupported protocol
  Unable to establish SSL connection.
  </code></pre>
  
  <p>I'm on ubuntu 20.04 LTS</p>