Fixed Non-ASCII attachment filename will crash when downloading.

Thanks to xet7 !

Fixes #2759

packages/wekan-cfs-base-package/base-client.js

@@ -0,0 +1,51 @@
+
+//XXX not sure this is still working properly?
+FS.Utility.connectionLogin = function(connection) {
+  // We check if the accounts package is installed, since we depend on
+  // `Meteor.userId()`
+  if (typeof Accounts !== 'undefined') {
+    // Monitor logout from main connection
+    Meteor.startup(function() {
+      Tracker.autorun(function() {
+        var userId = Meteor.userId();
+        if (userId) {
+          connection.onReconnect = function() {
+            var token = Accounts._storedLoginToken();
+            connection.apply('login', [{resume: token}], function(err, result) {
+              if (!err && result) {
+                connection.setUserId(result.id);
+              }
+            });
+          };
+        } else {
+          connection.onReconnect = null;
+          connection.setUserId(null);
+        }
+      });
+    });
+
+  }
+};
+
+/**
+ * @method FS.Utility.eachFile
+ * @public
+ * @param {Event} e - Browser event
+ * @param {Function} f - Function to run for each file found in the event.
+ * @returns {undefined}
+ * 
+ * Utility for iteration over files in event
+ */
+FS.Utility.eachFile = function(e, f) {
+  var evt = (e.originalEvent || e);
+
+  var files = evt.target.files;
+
+  if (!files || files.length === 0) {
+    files = evt.dataTransfer ? evt.dataTransfer.files : [];
+  }
+
+  for (var i = 0; i < files.length; i++) {
+    f(files[i], i);
+  }
+};