Download fails when plugin directory name includes punctuation characters (or anything outside sanitize_key())

[lkraav]

Hi. As identified in #83, I think we could use a add_filter sanitize_key to perhaps add more elements to the whitelist. For example, some of our plugins are named something-other.git, to distinguish it from something-other aka clean upstream version. Your thoughts?

[lkraav]

Aah, I see now be16e11 moves away from sanitize_key(), which means we could use a custom filter, or just hardcode to add the . character, since it's likely to be used elsewhere also.

[bradyvercher]

Composer does allow . in package names, so I don't think there should be an issue hardcoding that. If you modify that regex to include ., does it solve your use case?

[lkraav]

Yes, it works.