xos-sample-gui-extension cleanup and update with new documentation

Change-Id: I6b70f5127ea631cfdd1f8a372a51c20f547e9c44
diff --git a/conf/webpack-dist.conf.js b/conf/webpack-dist.conf.js
index 36fbd97..c870043 100755
--- a/conf/webpack-dist.conf.js
+++ b/conf/webpack-dist.conf.js
@@ -95,7 +95,7 @@
   postcss: () => [autoprefixer],
   output: {
     path: path.join(process.cwd(), conf.paths.dist),
-    publicPath: "/spa/", // enable apache proxying on the head node
+    publicPath: "/xos/", // enable apache proxying on the head node
     filename: '[name].js'
   },
   resolve: {