show version in the footer

src/mixins/socket.js

@@ -9,6 +9,7 @@ export default {
 
     data() {
         return {
+            info: { },
             socket: {
                 token: null,
                 firstConnect: true,
@@ -44,6 +45,10 @@ export default {
             transports: ['websocket']
         });
 
+        socket.on('info', (info) => {
+            this.info = info;
+        });
+
         socket.on('setup', (monitorID, data) => {
             this.$router.push("/setup")
         });
@@ -280,6 +285,13 @@ export default {
 
     watch: {
 
+        // Reload the SPA if the server version is changed.
+        "info.version"(to, from) {
+              if (from && from !== to) {
+                  window.location.reload()
+              }
+        },
+
         remember() {
             localStorage.remember = (this.remember) ? "1" : "0"
         }