Added ability to open links in new window/tab, using target="_blank" (cf. #1510 and #2188).

Author: sgoll

modules/Link.js

@@ -71,6 +71,14 @@ class Link extends React.Component {
     if (clickResult === false || event.defaultPrevented === true)
       allowTransition = false
 
+    // If target prop is set (e.g. to "_blank") let browser handle link.
+    if (this.props.target) {
+      if (!allowTransition)
+        event.preventDefault()
+
+      return
+    }
+
     event.preventDefault()
 
     if (allowTransition)