[aur-general] Merge request: Lightzone

[Edoardo Maria Elidoro]

Hi everyone,
since LightZone is now OpenSource and Free I think this version[1]
should be merged into this[2].

[1] https://aur.archlinux.org/packages/lightzone-free/
[2] https://aur.archlinux.org/packages/lightzone/

Thanks,
Edoardo