changelog
    
    
    - Tue, 28 Jul 2020 14:44:48 +0200
 
    - by Mike Becker <universe@uap-core.de> [Tue, 28 Jul 2020 14:44:48 +0200] rev 23
 
    - adds solver test
 
    - Tue, 28 Jul 2020 14:27:14 +0200
 
    - by Mike Becker <universe@uap-core.de> [Tue, 28 Jul 2020 14:27:14 +0200] rev 22
 
    - bugfix: modified state is reset even when saving fails + more tests
 
    - Tue, 28 Jul 2020 14:05:04 +0200
 
    - by Mike Becker <universe@uap-core.de> [Tue, 28 Jul 2020 14:05:04 +0200] rev 21
 
    - DocumentHandlerTest tests if modified state is reset
 
    - Tue, 28 Jul 2020 13:48:59 +0200
 
    - by Mike Becker <universe@uap-core.de> [Tue, 28 Jul 2020 13:48:59 +0200] rev 20
 
    - adds more tests
 
    - Tue, 28 Jul 2020 11:53:56 +0200
 
    - by Mike Becker <universe@uap-core.de> [Tue, 28 Jul 2020 11:53:56 +0200] rev 19
 
    - adds tests for focus events
 
    - Mon, 27 Jul 2020 13:12:40 +0200
 
    - by Mike Becker <universe@uap-core.de> [Mon, 27 Jul 2020 13:12:40 +0200] rev 18
 
    - the MainMenu IS a JMenuBar
 
    - Mon, 27 Jul 2020 12:52:34 +0200
 
    - by Mike Becker <universe@uap-core.de> [Mon, 27 Jul 2020 12:52:34 +0200] rev 17
 
    - removes unused test
 
    - Mon, 27 Jul 2020 12:51:20 +0200
 
    - by Mike Becker <universe@uap-core.de> [Mon, 27 Jul 2020 12:51:20 +0200] rev 16
 
    - adds numpad test