Add mechanism for static .well-known files.

Author: RubenVerborgh

lib/create-app.js

@@ -56,6 +56,7 @@ function createApp (argv = {}) {
   app.use('/common', express.static(path.join(__dirname, '../common')))
   routeResolvedFile(app, '/common/js/', 'mashlib/dist/mashlib.min.js')
   routeResolvedFile(app, '/common/js/', 'mashlib/dist/mashlib.min.js.map')
+  app.use('/.well-known', express.static(path.join(__dirname, '../common/well-known')))
 
   // Add CORS proxy
   if (argv.proxy) {