How to add a tracker in your XWiki using JavaScriptExtension object? (XWiki.org)

History of How to add a tracker in your XWiki using JavaScriptExtension object? — revisions from 1.4 to 14.1
From	To	Version	Editor	Date	Summary
From	To	14.1	Thomas Mortagne	2023/10/10
From	To	13.2	Vincent Massol	2022/11/24
From	To	12.1	Andreea Chirica	2020/05/05
From	To	11.1	Andreea Chirica	2020/05/05
From	To	10.1	Andreea Chirica	2020/05/05
From	To	9.3	Andreea Chirica	2020/05/05
From	To	8.1	Andreea Chirica	2020/05/05
From	To	7.1	Camelia Andrei	2020/05/05
From	To	6.1	Camelia Andrei	2020/05/05
From	To	5.1	Camelia Andrei	2020/05/05
From	To	4.1	Camelia Andrei	2020/05/05	Upload new image "GoogleAnalyticsXWiki.png", version 1.1
From	To	3.1	Andreea Chirica	2020/05/05
From	To	2.1	Andreea Chirica	2020/05/05
From	To	1.4	Andreea Chirica	2020/05/05	Update document after refactoring.