Add method Controller.register() (#3)

* create method Controller.register()

* build Controller dist

* change copyright year to 2019

Author: peter-gribanov

README.md

@@ -36,7 +36,13 @@ This framework is written for ECMAScript 2016, but you can use the recompiled ve
 
 ## Methods
 
-The library exposes these methods: `registerControl()`, `registerControls()`, `singleBind()`, `bind()`.
+The library exposes these methods: `register()`, `registerControl()`, `registerControls()`, `singleBind()`, `bind()`.
+
+### Controller.register
+
+Bind all controls for all elements after content loaded.
+
+* * *
 
 ### Controller.registerControl
 
@@ -101,8 +107,8 @@ controller:
 ```js
 Controller.registerControl('date-picker', element => $(element).datepicker({dateFormat: 'yy-mm-dd'}));
 
-// find input and bind datepicker control to it
-document.addEventListener('DOMContentLoaded', () => Controller.bind(document.getElementsByTagName('body').item(0)));
+// register Controller to find input and bind datepicker control to it
+Controller.register();
 ```
 
 Use in HTML:
@@ -158,7 +164,7 @@ Controller.registerControl('show-password', element => {
 });
 
 // bind all controls for all elements
-document.addEventListener('DOMContentLoaded', () => Controller.bind(document.getElementsByTagName('body').item(0)));
+Controller.register();
 ```
 
 ### Use classes for controls
@@ -208,7 +214,7 @@ Controller.registerControls({
     'date-picker': element => $(element).datepicker({dateFormat: 'yy-mm-dd'}),
     'append': element => new AppendControl(element),
 });
-Controller.bind(document.getElementsByTagName('body')[0]);
+Controller.register();
 ```
 
 Use in HTML:

dist/controller.es2015.min.js

@@ -2,7 +2,7 @@
  * GpsLab Controller
  * https://github.com/gpslab/gpslab-controller
  *
- * Copyright 2018 by Peter Gribanov (http://peter-gribanov.ru)
+ * Copyright 2019 by Peter Gribanov (http://peter-gribanov.ru)
  *
  * Licensed under the MIT license:
  * http://www.opensource.org/licenses/MIT
@@ -28,6 +28,15 @@
   const registry = [];
 
   class Controller {
+    /**
+     * Bind all controls for all elements after content loaded.
+     */
+    static register() {
+      document.addEventListener('DOMContentLoaded', () => {
+        Controller.bind(document.getElementsByTagName('body').item(0));
+      });
+    }
+
     /**
      * Register control by name.
      * @param {string} name