Can move files from the tree view

src/stdlib/fs.coffee

@@ -53,6 +53,9 @@ module.exports =
   listTree: (path) ->
     $native.list(path, true)
 
+  move: (source, target) ->
+    $native.move(source, target)
+
   # Remove a file at the given path. Throws an error if path is not a
   # file or a symbolic link to a file.
   remove: (path) ->