Changelog from v 0.2.0:

- Fix incorrect zoom in / zoom out behaviour after 'z'
- Fix stability issues (now image is converted in framebuffer format)
- More sanity checks

Changelog from v 0.1.1:

- New hotkey "z" zooms image at pixel level (100% zoom)
- New hotkeys "l" and "r" rotate the image 90 degrees counterclockwise/clockwise
- No cursor (arrow) on the screen