Include this private module by adding the following under dependencies in package.json, and run npm install.
"snapmobile-onesignal": "git+ssh://@github.com/SnapMobileIO/SnapMobile-OneSignal.git",
To configure, add the following to routes.js:
import OneSignal from 'snapmobile-onesignal';
Make any changes in /src.
Once changes are completed, run gulp dist to process JavaScript files and add to /dist.