Fixed: open links in new tab on meta click (#3831)

This adds support to open links in new tabs for all the operating
systems.

Fixes #3830

src/UI/jQuery/RouteBinder.js

@@ -45,17 +45,17 @@ var routeBinder = {
         }
 
         if (!href.startsWith('http')) {
-            event.preventDefault();
 
-            if (event.ctrlKey) {
+            var openedInNewTab = event.ctrlKey || event.shiftKey || event.metaKey;
-                window.open(href, '_blank');
+
+            if (openedInNewTab) {
+                return;
             }
 
-            else {
+            var relativeHref = href.replace(StatusModel.get('urlBase'), '');
-                var relativeHref = href.replace(StatusModel.get('urlBase'), '');
+            Backbone.history.navigate(relativeHref, { trigger : true });
+            event.preventDefault();
 
-                Backbone.history.navigate(relativeHref, { trigger : true });
-            }
         }
     }
 };