This application depends on the Montage framework which isn't included in the repository. There are two easy ways to install the Montage framework so that it can be loaded by this application.
If you have npm installed already simply type
npm install
If do not have npm you can use assist.sh script. This will download montage as a sibling to your application's directory and create a symlink in the node_modules directory of the application.
./assist.sh link montage