Add update button to about

Properties/Resources.Designer.cs

@@ -133,6 +133,15 @@ namespace WorkIndicator.Properties {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to _Check for Update.
+        /// </summary>
+        public static string CheckUpdate {
+            get {
+                return ResourceManager.GetString("CheckUpdate", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Enabled.
         /// </summary>