- Check if the is-hidden property is available before reading it.
- Considerably increased speed for listing other images in folders, especially for remote locations. This allows for switiching to other images to become available much quicker.
- Fix panics, probably occuring when using an action like 'copy', and then closing the window. The crash causes all other windows to close. #553
- The creation date for images that don't provide a timezone was displayed as if the recorded date and time was in UTC.
- Zooming in would not work via the zoom menu, if the resulting zoom state would still fit the image inside the window.

- Track the location in source code of errors trying to get the root window.

Git-EVTag-v0-SHA512: 344e12eac89af8db5a1dc252f75eaf000d065905dc69f099a2944f3d42c96762776468b1dee8e5fbb66b7472ffe3d02e9d8d2fd5da330fb0dc7642f997a61e83