2.8.7 * Change urlNotFound.js to url-not-found.js (Rand McKinney) * Add lib/server-app.js (Rand McKinney) * package: add versioned sl-blip dependency (Ryan Graham) * fix User.settings.ttl can't be overridden in sub model (Clark Wang) * Fix Change.getCheckpointModel() giving new models each call (Farid Neshat) * Update README.md (Rand McKinney)