changelog
    
    
    - Tue, 28 Jul 2020 14:45:06 +0200
 
    - by Mike Becker <universe@uap-core.de> [Tue, 28 Jul 2020 14:45:06 +0200] rev 24
 
    - adds target/ to .hgignore
 
    - 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