Fix handler registration.

The way it was being done meant that unregisterHandlers would not
have worked.

lib/www/client/source/src/App.vue

@@ -92,18 +92,12 @@ export default {
 
       this.$store.dispatch('registerHandler', {
         table: '.jwt',
-
-        handler: (context, message) => {
-          this.handleJWT(context, message);
-        }
+        handler: this.handleJWT(context, message)
       });
 
       this.$store.dispatch('registerHandler', {
         table: 'project',
-
-        handler: (context, message) => {
-          this.handleProject(context, message);
-        }
+        handler: this.handleProject(context, message)
       });
 
     },