Update UIs and test to use blocking query parameter

test/remote/lib/api_client.rb

@@ -83,7 +83,7 @@ class ApiClient
   end
 
   def state_path(params = {})
-    "/gateways/#{params[:id]}/#{params[:type]}/#{params[:group_id]}"
+    "/gateways/#{params[:id]}/#{params[:type]}/#{params[:group_id]}?blockOnQueue=true"
   end
 
   def delete_state(params = {})

test/remote/spec/rest_spec.rb

@@ -139,7 +139,7 @@ RSpec.describe 'REST Server' do
     end
 
     it 'should update state for known alias' do
-      path = "/gateways/#{@alias}"
+      path = "/gateways/#{@alias}?blockOnQueue=true"
 
       @client.put(path, status: 'ON', hue: 100)
       state = @client.get(path)

web/src/js/script.js

@@ -493,7 +493,7 @@ var updateGroup = _.throttle(
   function(params) {
     try {
       $.ajax({
-        url: activeUrl(),
+        url: activeUrl() + "?blockOnQueue=true",
         method: 'PUT',
         data: JSON.stringify(params),
         contentType: 'application/json',