Possibility to ignore pre-releases in notifications

[rala72]

It is nice to be able to get notified on releases.
But some repositories are releasing so many pre-releases that it would be nice to disable it for them.

related: Ability to Watch a project but only for releases #410

[rbq]

I think this would require more fine grained control since 0.x.x releases seem to be labeled pre-release?

[rala72]

I think this would require more fine grained control since 0.x.x releases seem to be labeled pre-release?

I don't care being notified about 0.x releases as long as the owner doesn't mark them as pre-release in the config.

I just don't want getting notified from large repos where several preparation releases are done and one actual release.