changelog
    
    
    - Tue, 28 Jun 2022 11:19:33 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Tue, 28 Jun 2022 11:19:33 +0300] rev 280
 
    - Fix build
 
    - Tue, 28 Jun 2022 00:25:10 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Tue, 28 Jun 2022 00:25:10 +0300] rev 279
 
    - Add build system information to the about dialog
 
    - Mon, 27 Jun 2022 23:58:04 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Mon, 27 Jun 2022 23:58:04 +0300] rev 278
 
    - Make editing tools disabled until a document is selected