message: don't show link preview when link is inside of a quote
diff: @@ -131,7 +131,8 @@ module.exports = React.createClass({
  links.push(node);
  }
  }
  - else if (node.tagName === "PRE" || node.tagName === "CODE") {
  + else if (node.tagName === "PRE" || node.tagName === "CODE" ||
  + node.tagName === "BLOCKQUOTE") {
  continue;
  }
  else if (node.children && node.children.length) {
  