Replace Gallery app with Piwigo

[JedMeister]

Gallery hasn't had any updates for years. It isn't compatible with PHP7 and regardless, IMO we should seriously consider discontinuing it as it may well have security issues. Piwigo is a Gallery-like app which could be a good replacement?!

FWIW I also stumbled across a guide on how to migrate from Gallery2/3 to Piwigo: https://notepad.patheticcockroach.com/4212/migrating-from-gallery3-to-piwigo/

[vondrt4]

I have recently looked for a replacement for PHPAlbum, which is undeveloped, and I have also found Piwigo to be the best.
It seems quite easy to install - I just extract it to /var/www/, set the database password and admin password, which is md5 hashed.

[JedMeister]

Thanks @vondrt4 😄

[JedMeister]

FWIW, Gallery has been revived so we've re-released that for v16.0. Having said that, I still think that this would be a pretty easy candidate and could be a winner?! Regardless, I'm moving to v17.0 for now...