Finish and improve Android XWiki authenticator and contact synchronization

History of Finish and improve Android XWiki authenticator and contact synchronization — revisions from 1.2 to 10.2
From	To	Version	Editor	Date	Summary
From	To	10.2	Eduard Moraru	2022/02/25 09:25	Updated class property name
From	To	9.2	Eduard Moraru	2022/02/25 09:22	Updated class property name
From	To	8.1	Eduard Moraru	2022/02/25 09:18	Migrated property [difficulty] from class [GoogleSummerOfCode.ProjectClass]
From	To	7.2	Eduard Moraru	2020/08/26 17:33
From	To	6.1	Aleksei Ovsiannikov	2019/02/01 05:01
From	To	5.1	Aleksei Ovsiannikov	2019/02/01 04:55
From	To	4.1	Aleksei Ovsiannikov	2019/02/01 04:54
From	To	3.2	Aleksei Ovsiannikov	2019/02/01 04:53	Update document after refactoring.
From	To	2.2	Aleksei Ovsiannikov	2019/02/01 04:51
From	To	1.2	Aleksei Ovsiannikov	2019/02/01 04:49