Bug fixes:
Rotating a selection smaller than the whole image did not work correctly.
Rotating some images with 8 bits per pixel or less color resolution unexpectantly changed colors of the image.
For some images with color resolution 8 bpp or less, clicking color buttons on the ribbon to select line or fill color had no effects, the color was always black.
Reversed the direction of zoom when turning mouse wheel and holding Ctrl key, to be consistent with (illogical in my opinion) direction that all other programs use.

[-] IMAP. Empty message is produced when trying to redirect partially downloaded message
[-] The calculation of current week in the message list was invalid
[+] An option to not show message time after the date in the message list; The option can be configured in the Preferences dialog