Updating uglify-js version.
AT in node.js: emulating XMLHttpRequest instead of adding a transport
Adding the ATDirectories property.
Fixing an issue with ATRemoveDoc when used with noder-js syntax.
Allowing a rename function in CopyUnpackaged.
Fixing an issue in ATGetDependencies when logging errors if the file name is not defined in the AST
Adding ImportSourceFile/ImportSourceFiles visitors.
Adding uglify-js helpers.
Allowing atpackager to be extended by plugins.
Using astToString in uglifyJS content provider.
Adding a new JSConcat builder.
Configurable mangle options in JSMinify.